Netafim SANDSTORM User Manual

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V 001.01 - MARCH 2018

USER MANUAL

SANDSTORM

™

METAL SINGLE-/DOUBLE-CHAMBER MEDIA FILTER

NO PARTS OF THIS PUBLICATION MAY BE REPRODUCED, STORED IN AN AUTOMATED DATA FILE OR MADE PUBLIC IN

ANY FORM OR BY ANY MEANS, WHETHER ELECTRONIC, MECHANICAL, BY PHOTOCOPYING, RECORDING OR IN ANY

OTHER MANNER WITHOUT PRIOR WRITTEN PERMISSION OF THE PUBLISHER.

ALTHOU GH NETA FIM™ TAKES THE GREATEST POSSIBLE CARE IN DESIGNING AND PRODUCING BOTH ITS PRODUCTS

AND THE ASSOCIATED DOCUMENTATION, THEY MAY STILL INCLUDE FAULTS.

NE TAFIM™ WILL NOT ACCEPT RESPONSIBILITY FOR DAMAGE RESULTING FROM THE USE OF NETAFIM'S PRODUCTS

OR THE USE OF THIS MANUAL.

NE TAFIM™ RESERVES THE RIGHT TO MAKE CHANGES AND IMPROVEMENTS TO ITS PRODUCTS AND/OR THE

ASSOCIATED DOCUMENTATION WITHOUT PRIOR NOTICE.

FOREIGN LANGUAGES

In the event that you are reading this manual in a language other than the English language, you acknowledge and agree that the English language version shall prevail in case of inconsistency or contradiction in interpretation or translation.

CONTENTS

Introduction

Aim of this manual Safety instructions Tools required for maintenance and troubleshooting Flange connection Filtration system components and structure - single-chamber Filtration system components and structure - double-chamber

Initial operation and adjustment

Maintenance

Once a week Once every three months At the end of the irrigation season At the beginning of the next irrigation season Algae and bacterial growth control Replacing the media Replacing the batteries in the BackFlush controller Paint retouching of the tanks and manifolds Cleaning the secondary ﬁlter

Troubleshooting

If the pressure difference across the ﬁltration system is over 0.7 bar (10.15 PSI) and the ﬂushing cycle does not reduce it If the ﬂushing cycle does not start but the controller is initiating the ﬂushing signal and the solenoids are reacting (“clicking”) If the media is running out through the backwash manifold during backwash If media is running out through the outlet manifold during ﬁltration

Replacement parts

Tanks - single-chamber Tanks - double-chamber Manifold sections Manifolds accessories Grooved couplings Support legs Control kit Backwash 3-way hydraulic valve 2" Backwash 3-way hydraulic valve 3" Backwash 3-way hydraulic valve 4" Backwash ﬂow-control valve BackFlush controller DC actuator valve Air Valve Inlet adaptor pipe Secondary ﬁlter

Warranty

4 4 5 5 6 7

10 10

11 12 13 14 15 16 16

18 18 19

20 22 24 25 25 26

28 30 32 34 35 35 35 36 36

4 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

Aim of this manual

The aim of this manual is to provide the user with general instructions for operation, maintenance and

troubleshooting of any conﬁguration of the SandStorm™ metal single- or double-chamber media ﬁltration system.

All system components are shipped to the site packed in pallets and boxes with installation drawings, user

manual, and a packing list.

NOTE

This manual describes the operation, maintenance and troubleshooting processes of a generic

SandStorm™ ﬁltration system and must be used in unison with the drawings supplied with the system.

Safety instructions

Before handling any part of the system, carefully read the instructions and act accordingly.

NOTE

The maximum working pressure of the ﬁltration system is 8 bar (116 PSI). Make sure the pressure

at the inlet of the ﬁltration system is not higher. (For ﬁltration systems made to order, see the maximum working pressure in the Product Order).

Check and make sure the pumps and valves do not exceed the tolerances of the system and match the requirements of the system pressure and ﬂow-rate speciﬁcations (see the documentation supplied with the system).

WARNING

Do not perform maintenance operations or open ﬁlter ports before the pressure in the system is fully released. For draining purposes, open any valve downstream from the ﬁltration system until the pressure is fully released. Check the pressure gauge to be sure it is at 0 before proceeding.

TIP

If a valve downstream from the ﬁltration system is not available for pressure release, you can install a manual valve on the lower 2" socket of the outlet manifold end-cap.

Electrical connections and wiring must be done by an authorized electrician only.

Be sure that prior to any maintenance procedures, all electrical connections to the system are unplugged (AC controller, pumps, etc.).

Do not apply excessive force or pressure on the ﬁltration system components.

Work only with proper and standard tools.

Use only original parts supplied/approved by Netaﬁm™.

INTRODUCTION

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 5

INTRODUCTION

Handling sodium hypochlorite (NaClO) or hydrogen peroxide (H2O2)

WARNING

Sodium hypochlorite (NaClO) and hydrogen peroxide (H2O2) are dangerous toxic and corrosive chemicals. All application regulations and safety rules must be observed. Store and handle them according to safety regulations.

Before handling

sodium hypochlorite (NaClO)

hydrogen peroxide (H2O2)

, carefully read all the

speciﬁc safety, health protection and ﬁrst aid information and instructions.

Be sure you have all

required ﬁrst aid at the site, as instructed

Concentrated liquid sodium hypochlorite (NaClO) or hydrogen peroxide (H2O2) can damage exposed metal (especially threads that are exposed to water). Be careful when applying them and avoid the spillage of any of the liquid onto exposed metal parts. Should any of the liquid come into contact with metal parts, immediately wash thoroughly with fresh water.

Tools required for maintenance and troubleshooting

• No special tools are needed. A standard toolkit is adequate.

• To connect grooved couplings: The following wrenches are required:

Grooved coupling size Bolt and nut size

(mm)

Wrench size

(mm)

inch mm

2 50 M10 17

3 80 M12 19

4 100 M12 19

6 150 M16 24

8 200 M20 30

10 250 M22 34

• To connect ﬂanges: The following wrenches are required:

Flange size Bolt and nut size Wrench size

up to 8" 5/8" 15/16 "

10" to 14" 7/8" 1.1/ 8 "

Flange connection

In most cases, the ﬁltration system manifolds are connected to the main line with ﬂanges.

ATTENTION

When connecting ﬂange pipe connectors, do not forget to place the rubber gasket in place.

6 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

INTRODUCTION

Filtration system components and structure

Single-chamber media ﬁltration system

Media ﬁlter tank

Backwash 3-way hydraulic valves

Backwash

ﬂow- control valve

Filtration system control kit

Air valve

Inlet manifold

Outlet manifold

Backwash manifold

Grooved coupling

Manifold support legs

Inlet ﬂange adaptor

Outlet ﬂange adaptor

Backwash

ﬂange adaptor

Location of the tank ports

Filling port

Side service port

Bottom service port

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 7

INTRODUCTION

Media ﬁlter tank

Backwash 3-way hydraulic valves

Backwash

ﬂow- control valve

Filtration system control kit

Air valve

Inlet manifold

Outlet manifold

Backwash manifold

Grooved coupling

Manifold support legs

Inlet ﬂange adaptor

Outlet ﬂange adaptor

Backwash

ﬂange adaptor

Location of the tank ports

Filling port

Side service port

Bottom service port

Filtration system components and structure

Double-chamber media ﬁltration system

8 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

INITIAL OPERATION AND ADJUSTMENT

DP ACTUAL

DP SET

FLUSH

TIME

FLUSH

MODE

BARSec Hours

MANUAL

ENTER

The actual DP value. Available only when the built-in

electronic DP sensor is used.

The DP set-point.

Available only when the built-in electronic DP sensor is used.

The desired

ﬂushing time per station.

The desired ﬂushing mode.

Contains either the ﬂushing interval or, when the ﬂushing is triggered by DP only, the letters “DP.”

Set the BackFlush controller:

The controller is equipped with an LCD display and 4 keys, as displayed below. When the unit is left

untouched for a minute, the display switches off and a beep is heard every 20 seconds to indicate it is working.

Holding down any of the keys for a few seconds will bring the screen back to life.

The screen consists of several ﬁelds. Some of them are editable and some of them are not.

To enter the EDIT MODE, press the key. The EDIT MODE is indicated by blinking of the currently

editable ﬁeld.

Each time you press the key, the next editable ﬁeld becomes active and starts blinking.

Use the and keys to change the value in the active ﬁeld. Press the key again to set the selected value for the current ﬁeld and move to the next editable ﬁeld.

To return to a previous ﬁeld during the process of passing through the editable ﬁelds, press the key

repeatedly until you get back to the FLUSH TIME ﬁeld, and there are blinking ﬁelds. You can then begin the process again.

Conﬁguration

Parameter Deﬁnition Action Main valve

(sustaining valve)

The pre-dwell delay between the main valve opening and the opening of station 1

Select:

YES

if exists

Enter:

20 sec

Dwell time

The backwashing delay between stations Enter:

10 sec

DP delay

The delay during which the DP sensor reading is expected to remain stable before reaction

Enter:

10 sec

Looping limit

The number of consecutive ﬂushing cycles triggered by the DP sensor before deciding that there is an endless looping problem

Enter:

Alarm

Allocates one output for alarm activation Select:

YES

Delay valve

Allocates one output for delay-valve activation Select:

YES

if exists

(continued on the next page)

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 9

INITIAL OPERATION AND ADJUSTMENT

Parameter Deﬁnition Action View outputs

This is a special mode that enables the user to review the list of outputs and their allocations. The output number is displayed in the bottom left corner and its allocated function appears in large letters in the center of the screen

Use the

key to toggle between NO and YES and conﬁrm by pressing

the key

. Keep using

the key to review the list

Pressure units

Select the units to be used for pressure measurement

Select:

BAR

PSI

Calibration

Zero calibration of the built-in electronic DP sens or.

Disconnect the sensor ports from the command tube and open them to atmospheric pressure; then select calibration:

YES

Version display

Displays the controller's software versionnumber.

No action required. Press the key twice to proceed.

Flush time

The desired ﬂushing time per station. Enter:

100 sec

DP set-point

The pressure difference between the ﬁlter’s inlet and outlet that initiates a ﬂushing cycle.

Enter:

0.7 bar or 10 PSI

Flush mode

The ﬂushing interval or, when the ﬂushing is triggered by DP only, the letters “DP.”

Enter:

3 hours

(For full instructions, see the BackFlush controller manual).

NOTE

If the ﬁltration system was not ordered with a BackFlush controller and is used with an existing irrigation system controller, see your irrigation controller user manual for instructions.

Turn on the water and start irrigation.

As soon as the system is pressurized and stable, start a manual backwashing cycle by pressing the

key. The icon will appear on the display (to manually terminate a backwashing cycle in progress, press the same key).

After completion of a full backwashing cycle, check that the ﬁltration system DP is within the operational

range (0.15-0.4 bar/2.2-5.8 PSI, depending on the ﬂow rate). Toggle the control kit 3-way ball valve and note the ﬁltration system inlet and outlet pressure. Subtract the outlet pressure from the inlet pressure.

The result is the ﬁltration system DP.

Check all the ﬁltration system connections for water leaks – re-ﬁt, re-connect and re-secure if necessary.

Check all the command tube connections for leaks – re-ﬁt, re-connect, and re-secure if necessary.

Check that the backwashing cycle is performed in the correct order and that all the ﬁlters in the system

are backwashed in sequence.

Check the secondary ﬁlter (if installed) for the presence of gravel.

NOTE

If a secondary ﬁlter is not installed, disconnect the main line pipe downstream from the ﬁltration system, let the water ﬂow to the ground and visually check for the presence of gravel.

If gravel is present, see Troubleshooting, page 17.

ATTENTION

Steps 2 to 8 above should be performed whenever the operation of the ﬁltration system is resumed after being idle (i.e., after seasonal shutdown, maintenance or troubleshooting operations).

Conﬁguration (continued)

10 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

MAINTENANCE

NOTE

It is highly recommended to keep track of the ﬁltration system pressure regime. Make a dated list of all maintenance activities with system pressure data.

Once a week

While the system is working:

1. Start a manual backwashing cycle by pressing the key (the icon will appear on the display) and

check that the backwashing happens in sequence according to your backwash controller setup (to manually terminate a backwashing cycle in progress, press the same key).

Check that during the last 10 seconds of the backwash of every ﬁlter, the water from the backwash

manifold runs out freely and clean.

After completion of a full backwashing cycle, check that the ﬁltration system DP is within the

operational range (0.15-0.4 bar/2.2-5.8 PSI, depending on the ﬂow rate). Toggle the control assembly 3-way ball valve and note the ﬁltration system inlet and outlet pressure. Subtract the outlet pressure from the inlet pressure. The result is the ﬁltration system DP.

Check the control assembly ﬁlter and clean it (blockage of this ﬁlter will cause a malfunction of the

backwashing process).

Check for leaks from connections and ﬁttings - re-ﬁt, re-connect and re-secure if necessary.

Open the secondary screen ﬁlter (if installed) and check its condition - if necessary, take out the ﬁltration

element and clean it with high pressure water. Put the ﬁltration element back in place and close the ﬁl ter.

Check the ﬁltration system visually for any damage to the paint. If the protective coating of the tanks

and/or manifolds is damaged, see Paint retouching of the tanks and manifolds, page 16.

For further assistance, contact your local Netaﬁm™ representative.

Once every three months

While the system is working:

1. Perform steps 1 - 5 as described in the weekly maintenance section above.

Release the pressure from the ﬁltration system. Open any valve downstream from the ﬁltration system

or the manual valve (if installed) on the outlet manifold end-cap until the pressure is fully released. Check the pressure gauge to be sure it is at 0 before proceeding.

Empty all the water from the ﬁltration system. Open any valve downstream from the ﬁltration system or the manual valve (if installed) on the outlet manifold end-cap.

Open the ﬁlling port (top port) of all the tanks.

TIP

To speed up emptying the water from the ﬁltration system,

you can temporarily dismantle the outlet manifold end-cap.

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 11

MAINTENANCE

Visually check the ﬁltration system (externally and inside the tanks, with the aid of a ﬂashlight) for

any damage to the paint. If the protective coating of the tanks and/or manifolds is damaged, see Paint

retouching of the tanks and manifolds, page 16.

Check the level of media inside the ﬁlters.

• If the level is lower than the media level marker on the ﬁlter tank - add media.

• If the level is higher than the media level marker on the ﬁlter tank - remove media.

Manually stir the media inside the tank and check for media solidiﬁcation.

• If the media has solidiﬁed, crumble it with high pressure water.

WARNING

Do not use tools (such as a shovel) to crumble the media, as this could damage the elements inside the tank.

Open the secondary screen ﬁlter (if installed) and check its condition - if necessary, remove the ﬁltration

element and clean it with high pressure water. Put the ﬁltration element back in place and close the ﬁl ter.

For further assistance, contact your local Netaﬁm™ representative.

At the end of the irrigation season

ATTENTION

Never leave the ﬁltration system unclean for the winter season.

During the last irrigation cycle of the season: Check the ﬁltration system inlet and outlet pressure and

make sure that they and the DP (Delta pressure) ﬁt the system benchmark data.

Perform all actions as described in the weekly maintenance section, page 10.

Check that the backwashing parameters in the controller are correct. If not, enter the correct data.

Close the water inlet to the ﬁltration system.

Perform steps 2 - 4 as described in the quarterly maintenance section, page 10.

Check the level of media inside the ﬁlters.

• If the level is lower than the media level marker on the ﬁlter tank - add media.

• If the level is higher than the media level marker on the ﬁlter tank - remove media.

Open the secondary screen ﬁlter (if installed) and check for gravel. If there is gravel, empty the tank that

is losing media and replace the damaged under-drain diffuser/s ("ﬂute/s" or "mushroom/s") (see Replacing a damaged under-drain diffuser part, page 18).

Perform chemical cleaning of the media (see Algae and bacterial growth control, page 13).

Turn off the water.

10.

Open the secondary screen ﬁlter (if installed), remove the screen, clean it and store it in a dry and safe

place with all the ﬁlter covers and handles.

• For manual ﬁlters: Make sure that the cover gaskets are dry before storage.

• For automatic or semi-automatic ﬁlters: Open the ﬁlter and check all the inner elements.

11.

Lubricate all the screws and bolts of the system. In particular, carefully oil the screws of the shutter units in the gravel ﬁlter and the secondary screen ﬁlter (if it is a manual ﬁlter).

12 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

MAINTENANCE

12.

Open all gravel-ﬁlter covers, drain all the water out of the ﬁltration system (preferably by removing the outlet manifold end-cap). When the ﬁlters are completely drained, close the ﬁlling ports.

13.

Disconnect the electricity source of the backwash controller (for battery-operated controllers – remove

the batteries).

For further assistance, contact your local Netaﬁm™ representative.

At the beginning of the next irrigation season

Check all covers, gaskets and screen/s that were stored at the end of the previous season. Clean them

and wash with fresh water.

Check the level of media inside the ﬁlters.

• If the level is lower than the media level marker on the ﬁlter tank - add media.

• If the level is higher than the media level marker on the ﬁlter tank - remove media.

Install the screen and cover of the secondary screen ﬁlter.

Connect the electricity source to the controller (for battery-operated controllers – replace the old

batteries with new ones) and perform a manual backwash – be sure that the controller sends signals in

sequence to the solenoids valves and that the solenoids are reacting.

Clean the screen ﬁlter in the control assembly with fresh water.

Lubricate all the screws and bolts of the system. In particular, carefully oil the screws of the port covers

in the gravel ﬁlter and the secondary screen ﬁlter cover.

Perform chemical cleaning of the media (see Algae and bacterial growth control, page 13).

Run according to the irrigation program.

For further assistance, contact your local Netaﬁm™ representative.

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 13

MAINTENANCE

Algae and bacterial growth control

WARNING

Before handling

sodium hypochlorite (NaClO)

hydrogen peroxide (H2O2)

, carefully read all the

speciﬁc safety, health protection and ﬁrst aid information and instructions.

Be sure you have all

required ﬁrst aid at the site, as instructed

Perform 1 or 2 manual backwashes of the system (as needed), using the manual option in the controller.

Release the pressure from the ﬁltration system. Open any valve downstream from the ﬁltration system

or the manual valve (if installed) on the outlet manifold end-cap, until the pressure is fully released. Check the pressure gauge to be sure it is at 0 before proceeding. Do not drain the system.

Open the top service ports of all the tanks.

Make sure that the tanks remain two-thirds full with water. This is essential for the success of the

chemical treatment.

Pour the required quantity of sodium hypochlorite (NaClO) or hydrogen peroxide (H2O2) into each tank

according to the table below.

Tank

diameter

(inch)

Quantity of sodium hypochlorite (NaClO) (liter) Quantity of hydrogen peroxide (H

2O2

) (liter)

Domestic liquid

3% concentration

Technical liquid

10% concentration

Technical liquid

30% concentration

12 0.7 0.25 0.15

16 0.8 0.3 0.15

20 1.1 0.4 0.2

24 1.5 0.5 0.2

30 3.0 1.0 0.3

36 5.0 1.5 0.5

48 10.0 3.0 1.5

Gently stir the media inside each tank with a wooden stick.

WARNING

Take care not to damage the tank under-drain diffuser/s ("ﬂutes" or "mushrooms").

Wait at least 3 hours for the chemical contact time.

Close the top service ports of all the tanks.

Pressurize the system.

10.

Perform 1 or 2 manual backwashes of the system (as needed), using the manual option in the controller.

For further assistance, contact your local Netaﬁm™ representative.

14 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

MAINTENANCE

Replacing the media

WARNING

The sand media usually requires replacement every 3 to 5 years, depending on water quality and how

much the system operates.

Close all the valves, open the top and bottom service ports of all the tanks and remove their covers.

Drain and ﬂush all the media from the tank.

CAUTION

Do not use tools to help remove the media - under-drain diffusers ("ﬂutes" or "mushrooms") could be damaged.

TIP

If the sand media is solidiﬁed inside the tank and does not pour out of the bottom service port by

itself, you can crumble it with pressurized water through the bottom service port.

Rinse and clean the inside of the tank.

Visually check (with the aid of a ﬂashlight) the inside of all the tanks, through the ﬁlling port, for

damaged, missing or unsecured under-drain diffusers ("ﬂutes" or "mushrooms"). Replace, re-ﬁt, re-

connect and re-secure if necessary (See tank replacement parts: single-chamber - page 20, double-

chamber - page 22).

Make sure that the bottom service port and its gasket are clear of any remaining gravel particles and

close the bottom service port.

ATTENTION

Single-chamber only

Before ﬁlling the tanks with media, Fill each tank with water up to a third of its height with a hose through the ﬁlling port before media ﬁlling to prevent damage to the under-drain diffusers when pouring the media.

Fill the tanks with media through the ﬁlling port. Fill each tank up to the media level marker on the ﬁlter tank.

*Crushed basalt.

Tank diameter

(inch)

Sand quantity*

kg lbs

12 60 132

16 90 198

20 120 265

24 180 397

30 240 529

36 360 794

48 575 1768

Tank diameter

(inch)

Sand quantity*

kg lbs

30 270 595

36 350 770

48 675 1490

Single-chamber Double-chamber

Flatten the surface of the media.

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 15

MAINTENANCE

8. Make sure that the ﬁlling port and its gasket are clear of any remaining gravel particles and clos the

ﬁlling port.

Turn on the water and start irrigation.

10.

As soon as the system is pressurized and stable, start a manual backwashing cycle by pressing the key (the icon will appear on the display) and check that the backwashing happens in sequence according to your backwash controller setup (to manually terminate a backwashing cycle in progress, press the same key).

11.

Readjust the backwash ﬂow-control valve:

• If a manual backwash ﬂow-control valve is installed, throttle the valve to reduce the ﬂow until the

media stops running out.

• If a hydraulic backwash ﬂow-control valve is installed, the valve is factory pre-set to the required

ﬂow rate.

In the rare case that the backwash ﬂow-control valve requires ﬁne-tuning: a.

Release the pilot lock-nut.

Gently rotate the pilot calibration bolt counterclockwise with a wrench to reduce the ﬂow until the media stops running out.

Retighten the pilot lock-nut.

For further assistance, contact your local Netaﬁm™ representative.

Replacing the batteries in the BackFlush controller

For controllers powered by 4 x 1.5v D-size batteries (6v DC)

ATTENTION

• Match the poles to the markings inside the battery housing.

• Always replace the whole set of 4 batteries at once.

Remove the upper cover.

Pull out the battery housing

Remove the used batteries from the battery

housing

Insert new batteries.

Push the battery housing back in.

Put the upper cover back in place.

1 2

16 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

MAINTENANCE

Paint retouching of the tanks and manifolds

WARNING

If the protective coating (inside and outside) of the tanks and manifolds is damaged and the bare metal is exposed, it will rust in contact with irrigation water and chemicals. If neglected, this will lead to a leak.

A tin of polyester protective repair paint (color: RAL 5010) is supplied with the system.

Any damage to the protective coating of the tanks and manifolds must be repaired as soon as possible.

Sand the damaged area or spot with sandpaper and clean it with a wire brush.

Apply the protective paint.

Let the paint completely dry for at least 24 hours before exposing the mended spot to water.

For further assistance, contact your local Netaﬁm™ representative.

Cleaning the secondary ﬁlter

At the end of the irrigation season and during the irrigation season, at the frequency required by the

irrigation water quality.

Remove the ﬁltration element from the ﬁlter casing and clean it according to the instructions in the ﬁlter

user manual.

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 17

TROUBLESHOOTING

WARNING

If the pressure difference across the ﬁltration system is over 0.7 bar (10.15 PSI) and the ﬂushing cycle does not reduce it:

Check the system ﬂow rate to see if the ﬂow rate corresponds with the benchmark data, to make sure

that the system ﬂow rate is not too high.

If the pressure differential is not caused by a high ﬂow rate, perform the following steps.

Adjust the ﬂow-control valve if necessary.

Make sure that the water from the backwash manifold is running free.

Check the duration of backwash and make sure the water that drains in the last 10 seconds of ﬂushing

is clean. If the water is dirty at the end of the ﬂushing – increase the duration of ﬂushing – if required, increase the backwash duration and perform 3 consecutive ﬂushing cycles.

If the ﬂushing cycle does not start but the controller is initiating the ﬂushing signal and the solenoids are reacting (“clicking”):

Check the command ﬁlter in the control head. Clean it if necessary and perform manual ﬂushing.

Check for clogging inside the solenoid valves - clean if possible or replace with a new solenoid.

Check for clogging of the hydraulic control tubes - open the clogs and clean if necessary.

Check for a ruptured or defective hydraulic control tube - replace if necessary.

If the media is running out through the backwash manifold during backwash:

Adjust the backwash ﬂow-control valve on the backwash manifold.

• If a manual backwash ﬂow-control valve is installed, throttle the valve to reduce the ﬂow until the

media stops running out.

• If a hydraulic backwash ﬂow-control valve is installed, the valve is factory pre-set to the required

ﬂow rate.

In the rare case that the backwash ﬂow-control valve requires ﬁne-tuning:

Release the pilot lock-nut.

Gently rotate the pilot calibration bolt counterclockwise with a wrench to reduce the ﬂow until the media stops running out.

Retighten the pilot lock-nut.

Check the level of media inside the ﬁlters.

• If the level is lower than the media level marker on the ﬁlter tank - add media.

• If the level is higher than the media level marker on the ﬁlter tank - remove media.

18 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

TROUBLESHOOTING

If media is running out through the outlet manifold during ﬁltration:

Replacing a damaged under-drain diffuser part ("ﬂute" or "mushroom"):

Release the pressure and drain the ﬁltration system. Open any valve downstream from the ﬁltration system or the manual valve (if installed) on the outlet manifold end-cap, until the pressure is fully released. Check the pressure gauge to make sure it is at 0 before proceeding.

Empty the water from the ﬁltration system.

TIP

To speed up emptying the water from the ﬁltration system,

you can temporarily dismantle the outlet manifold end-cap.

Open the top service ports of all the tanks.

Gently remove the media from all the tanks.

WARNING

Do not use tools (such as a shovel) to remove the media, as this could damage the tank under-drain diffusers ("ﬂutes" or "mushrooms").

Clean any media remaining on the under-drain diffuser with pressurized water (with a hose, through the top service ports).

Visually identify the damaged under-drain diffuser part/s ("ﬂute/s" or "mushroom/s") with the aid of a ﬂashlight.

ATTENTION

There may be more than one tank losing gravel.

ATTENTION

Screw, unscrew and fasten the under-drain diffuser parts by hand only. Do not use tools, as this could damage the under-drain diffusers ("ﬂutes" or "mushrooms").

Manually unscrew the damaged under-drain diffuser part.

Check the integrity of the following parts and replace them it if necessary:

• Single-chamber tank - the plastic washer (yellow).

• Double-chamber tank - the rubber gasket.

WARNING

A damaged rubber gasket may be difﬁcult to pull out. Do not use a screwdriver (or any metal tool) to remove it, as this could damage the tank protective coating.

Replace the damaged under-drain diffuser part ("ﬂute" or "mushroom") with a new one.

ATTENTION

Do not forget to put the following parts back in place:

• Single-chamber tank - the plastic washer (yellow).

• Double-chamber tank - the rubber gasket.

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 19

TROUBLESHOOTING

ATTENTION

Single-chamber only

Before ﬁlling the tanks with media, ﬁll each tank with water up to a third of its height with a hose through the ﬁlling port before media ﬁlling.

10.

Fill the tanks with media through the ﬁlling port. Fill each tank up to the media level marker on the ﬁlter tank.

*Crushed basalt.

Tank diameter

(inch)

Sand quantity*

kg lbs

12 60 132

16 90 198

20 120 265

24 180 397

30 240 529

36 360 794

48 575 1768

Tank diameter

(inch)

Sand quantity*

kg lbs

30 270 595

36 350 770

48 675 1490

Single-chamber Double-chamber

11.

Flatten the surface of the media.

12.

Make sure that the ﬁlling port and its gasket are clear of any remaining gravel particles and close the

ﬁlling port.

13.

Turn on the water and start irrigation.

(See tank replacement parts: single-chamber - page 20, double-chamber - page 22).

For further assistance, contact your local Netaﬁm™ representative.

20 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

ITEM

NO.

48'' UNDER CAMBER SINGLE

48'' BODY SHEET SINGLE

48'' TOP CAMBER SINGLE

10'' COVER GASKET

hex bolt gradeab_iso(ISO 4014 -

hex nut gradec_iso(Hexagon

Nut ISO - 4034 - M12 - S)

8'' COVER GASKET

8'' CAST IRON COVER

10 11

PVC pipe PN25-48''

underdrain bolt M12

spring washer M12

REPLACEMENT PARTS

Tanks 30, 36, 48"

Tanks - single-chamber

REV.

DESCRIPTION

Drawing No.

Project:

Permissible deviations in mm for ranges in nominal lengths

3-D Proj.

Part No.

Scale:

Sheet Size:

Subject:

Part Name:

Material:

1:50

Finish:

Quantity:

±0.05

≥ 0.5 ≤ 3

> 3 ≤ 6

±0.05

13141211

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 21

REPLACEMENT PARTS

Part Description Tank diameter (in) Cat. No.

1 Filter body Not available as spare part

2 Undedrain collector

30 71915-000124

36 71915-000125

48 71915-000126

3 Plastic washer All 71915-000128

4 Mushroom diffuser All 71915-000127

5 Underdrain element - S All 71915-000131

6 Underdrain element - M 36, 48 71915-000132

7 Underdrain element - L 48 71915-000133

8 Underdrain screw set (2X) All 71915- 000210

Top and bottom service cover gasket 8" 30 71915-000107

Top and bottom service cover gasket 10" 36, 48 71915- 000121

Top and bottom service cover 8" 30 71915-000113

Top and bottom service cover 10" 36, 48 71915-000122

11 Bolt M12X50 All 71915 -000114

12 Nut M12 All 71915 -000115

13 Service cover gasket 8" All 71915-000107

14 Service cover 8" All 71915-000113

15 O-ring All 71915-000134

16 Extension leg All 71915-000135

17 Rubber leg All 71915-000136

22 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

REPLACEMENT PARTS

Tanks up to 24"

Tanks 30" and up

Tanks - double-chamber

7 6 13 12

1515

REV.

DESCRIPTION

DATE

Project:

Material:

121367

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 23

REPLACEMENT PARTS

Part Description Tank diameter (in) Cat. No.

1 Filter body Not available as spare part

2 Mushroom diffuser All 71915-000102

3 Mushroom rubber gasket All 71915-000103

4 Top service cover

6" 12 71915-000108

16, 20, 24 71915-000109

30, 36 71915-000113

10" 48 71915- 000121

5 Top service cover gasket

6" 12 71915-000106 8" 16, 20, 24, 30, 36 71915-000107

10" 48 71915- 000121

6 Side service cover

6" 12, 16, 20 71915-000112 8" 24, 30, 36, 48 71915-000113

7 Side service cover gasket

6" 12, 16, 20 71915-000110

8" 24, 30, 36, 48 71915-000107 8 Bottom service cover 6" 48 71915-000112 9 Bottom service cover gasket 6" 48 71915-000110

10 Tightening bridge 12, 16, 20, 24 71915-000104

11 Tightening handle 12, 16, 20, 24 71915-000105 12 Bolt M12X50 All 71915-000114 13 Nut M12 All 71915-000115 14 2" male plug (plastic) All 75050-008800 15 Rubber leg cup All 71915-000136

16 PVC nipple and elbow

12 71915-000116

16 71915-000117

20 71915-000118 24 71915 - 000119

24 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

REPLACEMENT PARTS

Manifold sections

2 outlets

4 outlets

Inlet/outlet manifold sections -

1 outlet

2 outlets

Backwash manifold sections -

1 outlet

2 outlets

Manifolds of other diameters are available upon request.

Tank diameter (in)

Type of

manifold

Manifold diameter (in)

Number of outlets

Outlet diameter (in)

Cat. No.

Inlet/outlet 4

2 2 71910-001706

3 2 71910- 001715

Backﬂush 3

2 2 71910- 0 01705

3 2 71910- 001714

Inlet/outlet 4

2 2 71910 -001708

3 2 71910 - 001717

Backﬂush 3

2 2 71910- 0 01707

3 2 71910-001716

30-36

Inlet/outlet 6

1 3 71910-001701

2 3 71910-001710

Backﬂush 3

1 2 71910-001700

2 2 71910 -001709

Inlet/outlet 8

1 4 71910- 0 0170 4

2 4 71910-001713

Backﬂush 4

1 3 71910- 0 01703

2 3 71910- 001712

Double-sided manifold sections

Outlet manifold sections for parallel centered installations only

Tank diameter (in)

Type of

manifold

Manifold's diameter (in)

Number of outlets

Outlet's diameter (in)

Cat. No.

30, 36 Inlet/outlet 8

2 3 71910-007000

4 3 71910-000924

48 Inlet/outlet 10

2 4 71910-000050

4 4 71910-000051

Single-sided manifold sections

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 25

REPLACEMENT PARTS

Manifolds accessories

Elbows

Backﬂush manifold end-caps

End-cap diameter (in) Cat. No.

3 71910-001791

4 71910- 0 01792

Flange-grooved coupling adaptors

Standard › ISO10 ISO16 ANSI BSTD

Diameter (in) Cat. No.

3 71910-002005 71910-002003 71910-002004

4 71910-002008 71910-002006 71910-002007

6 71910 - 00 2011 71910-002009 71910 -002010

8 71910-002014 71910-0020 40 71910 - 0 0 2012 71910-002013

10 71910 - 0 02017 71910-002018 71910 - 0 02015 71910 - 002016

Inlet and outlet manifold end-caps

End-cap

diameter (in)

Female threaded

outlets

Cat. No.

BSP NPT

4 3 x 1" 71910-001801 71910 - 0 018 00

6 2 x 2" + 1 x 1" 71910-00180 3 71910-001802

8 2 x 2" + 1 x 1" 71910-00180 5 71910 - 0 018 04

10 2 x 2" + 1 x 1" 71910 - 001820 71910 - 001821

T-ﬁttings (adaptors)

T-ﬁtting diameter (in) T-ﬁtting outlets Cat. No.

8 2 x 6" 71910 - 0 01801

10 2 x 6" 71910 - 001803

10 2 x 8" 71910 - 001805

14 2 x 10" 71910 - 0 018 20

To order this spare part, call your local Netaﬁm™ representative with the SKU (Stock Keeping Unit) number of your SandStorm™ ﬁltration system at hand.

Only with

this number can we supply the correct part for your speciﬁc system.

Find the SKU

number on your system order form.

Diameter (in) Cat. No.

2 71910-002500

3 71910-0025 01

4 71910-002502

6 71910-002503

8 71910-002504

10 71910-0025 05

Grooved couplings

26 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

For double-chamber tanks

Tank

diameter (in) For manifold Cat. No.

Inlet 71910-001906

Outlet for straight systems 71910 - 0 018 99

Backﬂush 71910 - 0 01890

Inlet 71910-001906

Outlet for straight systems 71910 - 0 018 99

Outlet for parallel systems 71910-001967

Backﬂush 71910 - 0 01890

Inlet 71910 - 0 019 60

Outlet for straight systems 71910 - 0 019 09

Backﬂush 71910 - 0 01891

Inlet 71910 - 0 019 60

Outlet for straight systems 71910 - 0 019 09

Outlet for parallel systems 71910-001916

Backﬂush 71910 - 0 01891

Inlet 71910 - 0 01924

Outlet for straight systems 71910 - 0 01917

Outlet for parallel systems 71910-001928

Backﬂush 71910 - 0 01951

Support legs

For single-chamber tanks

Tank

diameter (in) For manifold Cat. No.

Inlet 71910 - 0 019 65

Outlet for straight systems 71910 - 0 019 08

Backﬂush 71910 - 0 01893

Inlet 71910 - 0 019 65

Outlet for straight systems 71910 - 0 019 09

Backﬂush 71910 - 0 01893

Inlet 71910 - 0 01971

Outlet for straight systems 71910 - 0 01970

Backﬂush 71910 - 0 01952

REV.

DESCRIPTION

DATE

APPROVED

Drawing No.

Project:

General Tolerance According to ISO 2768-f

LINEAR DIMENSIONS

Part No.

Drawn By

MA-6-200

08 Jan 2017

Barga

Subject:

Part Name:

Material:

Finish:

PROPRIETARY AND CONFIDENTIAL

THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF NETAFIM. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF NETAFIM IS PROHIBITED

Quantity:

REV.

DESCRIPTION

DATE

APPROVED

Project:

Material:

REPLACEMENT PARTS

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 27

REPLACEMENT PARTS

Control kit

Description Cat. No.

1" Control kit (BSP connection) 37090-009600

1" Control kit (NPT connection) 37090-009610

Part Description

Cat. No.

BSP NPT

1 NMV PVC ball valve 1 union 1" FMT 77450-000121 77450-000150

2 PVC double nipple 1" 77400-017800

3 PVC 90 deg threaded elbow 1" 77400-016200

4 Filter 1" 80 mesh blue inox 76240-004050 76240-004080

5 PVC threaded reducer 3/4M*1F 7740 0 - 0 11350

6 PVC 90 deg threaded Tee 3/4" 77400-013700

7 Bushing 3/4m * 1/4f 76400-009600

8 Male run tee 8*8*1/4" 76400-004560

9 S.Y-3 1/4F (1/ 8F*1/8 F*1/4M) 76040-001400

10 Male elbow 8*1/8" 76400-003400

11 Pressure gauge 250 GLZ 10 bar 1/4" 77540-003400

12 Brass elbow M.F. 1/4" 78300-002700

13 Plastic bushing 1M * 3/4F 78220-004600

14 Male branch Tee 8*1/4" 76400-004500

15 Plastic male threaded plug 2" 78220-006300

16 Plastic male threaded plug 1" 78220-006100

17 Galvanized bushing 3/4*1/4"* 78200-010490

Parts

*17 Only for systems equipped with a hydraulic ﬂow- control valve.

28 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

Part Description Cat. No.

1 Operator assembly 71680-006595

2 Body BSP 71680 - 001715

3 Plug 71610-000800

4 Grooved adaptor BSP 71680-015710

5 O-ring 716 80 - 014 350

6 Elbow 8 x 1/4 in 76400-003500

REPLACEMENT PARTS

Backwash 3-way hydraulic valve - 2"

Description Cat. No.

3-way hydraulic valve, 2" 71600-006515

Main parts

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 29

REPLACEMENT PARTS

1.6

1.1

1.15

1.2

1.4

1.5

1.3

1.5

1.7

1.16

1.8

1.9

1.10

1.11

1.12

1.13

1.14

Assemblies

Part Description Cat. No.

1 Operator assembly 71680-006595

1a Diaphragm assembly 71680-007480

1b Plug kit 716 8 0 - 001720

Assemblies - sub-parts

part Description

1 1a 1b

1.1 Bolt +

1.2 Bonnet +

1.3 Spring No. 51 +

1.4 Bolt + +

1.5 Diaphragm disc + +

1.6 Diaphragm No. 337 + +

1.7 Actuator body +

1.8 O-ring + +

1.9 O-ring + +

1.10 Shaft + +

1.11 Valve disc + +

1.12 Seal + +

1.13 Seal disc + +

1.14 Nut + +

1.15 Washer +

1.16 Nut M6 +

30 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

Backwash 3-way hydraulic valve - 3"

Description Cat. No.

3-way hydraulic valve, 3" 71600-006670

REPLACEMENT PARTS

Main parts

Part Description Cat. No.

1 Bolt 5/8*50 steel 71680-0 01710

2 Washer 5/8 76540-001100

3 Nut 5/8 76540-001000

4 Bonnet 71680 - 001721

5 Diaphragm assembly 71680-00775 0

6 Body 716 80 - 0129 25

7 Plug 71610-000800

8 Seat kit 71680 - 001713

9 Plug kit 71680- 0 017 23

10 BSP adaptor 716 8 0 -001722

11 Nut 716 8 0 -01170 0

12 Washer 7168 0 - 01160 0

13 Bolt 716 8 0 -0115 4 0

14 Elbow 8x1/4 in 76400-003500

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 31

REPLACEMENT PARTS

Part Description Cat. No.

5 Diaphragm assembly 71680-00775 0

8 Seat kit 71680 - 001713

9 Plug kit 71680- 0 017 23

Assemblies

Assemblies - sub-parts

part Description

5 8 9

5.1 Support pin +

5.2 Nut +

5.3 Top disc +

5.4 Diaphragm +

5.5 Shaft disc +

5.6 Shaft +

8.1 O-ring +

8.2 Seat +

8.3 O-ring +

9.1 Guide cone +

9.2 Seal +

9.3 Seal bowl +

9.4 Spacer +

9.5 Nut +

9.3

9.4

9.2

9.1

9.5

8.3

8.2

8.1

5.1

5.2

5.3

5.4

5.5

5.6

32 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

Backwash 3-way hydraulic valve - 4"

Description Cat. No.

3-way hydraulic valve, 4" 71600-006660

Main parts

REPLACEMENT PARTS

Part Description Cat. No.

1 Bolt 5/8*50 steel 71680-0 01710

2 Washer 5/8 76540-001100

3 Nut 5/8 76540-001000

4 Bonnet 71680 - 001711

5 Diaphragm assembly 71680-007800

6 Body ????????????

7 Plug 71610-000800

8 Seat kit 71680 - 001713

9 Plug kit 71680 -001714

10 Adaptor 71680-016091

11 Nut 716 8 0 -01170 0

12 Washer 7168 0 - 01160 0

13 Bolt 716 8 0 -0115 4 0

14 Elbow 8x1/4 in 76400-003500

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 33

Part Description Cat. No.

5 Diaphragm assembly 71680-007800

8 Seat kit 71680 - 001713

9 Plug kit 71680 -001714

REPLACEMENT PARTS

Assemblies

Assemblies - sub-parts

9.3

9.4

9.2

9.1

9.5

8.3

8.2

8.1

5.5

5.1

5.2

5.3

5.4

part Description

5 8 9

5.1 Nut +

5.2 Top disc +

5.3 Diaphragm +

5.4 Shaft disc +

5.5 Shaft +

8.1 O-ring +

8.2 Seat +

8.3 O-ring +

9.1 Guide cone +

9.2 Seal +

9.3 Seal bowl +

9.4 Washer +

9.5 Nut +

34 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

REPLACEMENT PARTS

Backwash ﬂow-control valve

Hydraulic ﬂow-control valve

For ﬁltration system tank diameter

Description Cat. No.

20"

3" metal hydraulic valve

71600 - 052301

24" 71600 - 052302

30" 71600 - 05230 3

36" 71600-052300

48" 4" metal hydraulic valve 71600-004272

Part Description

Cat. No.

3" 4"

1 Body 71680-018281 71680-018282

2 Diaphragm 71680-006300

3 Spring disc 71680-008900

4 Spring 71680-008100

5 Bonnet 71680-009153

6 Flow control pilot 29-310 716 8 0 - 0 0 117 5

Main parts

Parts Catalog - 100

REV.

DESCRIPTION

DATE

APPROVED

Project:

Material:

Description Cat. No.

3" plastic throttle valve 71920-000100

4" plastic throttle valve 71920-000110

Manual ﬂow-control valve

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 35

BackFlush controller

Description Cat. No.

DC 2 outputs with DP sensor 73240 - 0 0 3175

DC 4 outputs with DP sensor 73240 - 0 0 3178

DC 6 outputs with DP sensor 73240 - 0 0 3179

DC 8 outputs with DP sensor 7324 0 - 003181

DC 10 outputs with DP sensor 73240-00 3182

BackFlush controller

Description Cat. No.

DC 2 output expansion card 73240 - 0 0 317 7

Power supply 100-240VAC/12VDC 1A 73240 -007240

BackFlush controller accessories

REPLACEMENT PARTS

DC actuator valve

Description Cat. No.

Aquativ DC actuator valve 35500-001925

Netaﬁm™ Air Valve

ARI Air Valve

Air Valve

Inlet diameter (in)

Cat. No.

BSP NPT

1 32600-004000 70561-001200

2 32600-002000 70561-001500

36 SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL

Inlet adaptor pipe

45°

90°

To order this spare part, call your local Netaﬁm™

representative with the SKU (Stock Keeping Unit) number of your SandStorm™ ﬁltration system at hand.

Only with this number can we supply the correct part for your speciﬁc system.

Find the SKU number on your

system order form.

REPLACEMENT PARTS

Secondary screen ﬁlter

Secondary ﬁlter

To order this part, call your local Netaﬁm™

representative with the SKU (Stock Keeping Unit) number of your SandStorm™ ﬁltration system at hand.

Only with this number can we supply the correct part for your speciﬁc system.

Find the SKU number on your

system order form.

SANDSTORM™ SINGLE-/DOUBLE-CHAMBER USER MANUAL 37

WARRANTY

Netaﬁm™ warrants all the components of the SandStorm™ media ﬁlter system to be free of defects in material and workmanship for 5 (ﬁve) years from the date of installation.

If a defect is discovered during the applicable warranty period, Netaﬁm™ will repair or replace, at its

discretion, the product or the defective part.

This warranty does not extend to repairs, adjustments or replacements of a Netaﬁm™ media ﬁlter system

or part that results from misuse, negligence, alteration, force majeure, lightning, power surge, improper installation or improper maintenance.

If a defect arises in your Netaﬁm™ product during the warranty period, contact your local Netaﬁm™

representative.

Limited warranty

This warranty is subject to the conditions in Netaﬁm's ofﬁcial warranty statement. (For the full text of Netaﬁm's ofﬁcial warranty statement, please contact your local Netaﬁm™

representative).

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