Sta-Rite ST-80 Installation Manual

STAR

REGENERATIVE DIATOMACEOUS EARTH FILTER

INSTALLATION, OPERATION & SERVICE MANUAL

FILTER IS DESIGNED AND INTENDED FOR USE TO

FILTER WATER IN SWIMMING POOLS.

™

WARNING

THIS MANUAL CONTAINS

CRITICAL SAFETY INFOR-

MATION WHICH MUST BE

FURNISHED TO THE END

USER. FAILURE TO READ

AND FOLLOW INSTRUCTIONS

COULD RESULT IN SERIOUS

PERSONAL INJURY AND / OR

MAJOR PROPERTY DAMAGE.

PENTAIR POOL PRODUCTS

Sanford, NC Moorpark, CA
[phone] [phone]
Fax:[phone] Fax: [phone]

★ Patented No.4,944,887

STAR DE FILTER PAGE 2

TABLE OF CONTENTS

A. HOW YOUR FILTER WORKS. . . . . . . . . . . . . . . . . . . . 3

B. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

C. INITIAL START-UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

D. FILTER CARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

E. CLEANING FREQUENCY . . . . . . . . . . . . . . . . . . . . . . 4

(REGENERATION OR MANUAL CLEANING)

F. DISASSEMBLY AND FILTER . . . . . . . . . . . . . . . . . . . 5

MANUAL CLEANING PROCEDURE

G. WINTERIZING THE FILTER. . . . . . . . . . . . . . . . . . . . . 6

H. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . 7

I. REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . . . 8

READ AND FOLLOW ALL SAFETY INSTRUCTIONS

This filter operates under pressure and if assembled
improperly or operated with air in the water circulation sys­tem it can separate and result in an accident causing serious
bodily injury and/or property damage. A warning label has
been affixed to the top of the filter and should not be
removed. Keep safety labels in good condition and replace if
missing or illegible (For free labels call 1-800-833-3692).

A. HOW YOUR FILTER WORKS

Your D.E. Filter is designed to operate for years with a
minimum of maintenance.The filter utilizes corrosion resist­ant materials and when installed, operated and maintained
in accordance to these instructions, it will provide years of
trouble free operation.

Your Star is a diatomaceous earth (DE) type regenerative
filter. The unit requires D.E. in order to operate. The filter
grid cloth is covered with a thick coating of D.E.

Dirt is collected in the D.E.as the water flows into the bot­tom piping inlet and is distributed evenly around the filter.
Dirt is collected by the filter as the flow passes from the out­side of the grid to the inside of the grid. The flow then moves
upward to the top manifold where it is then channeled down­ward through the center pipe into the bottom piping and it
returns clear water to the pool.

The pressure inside the filter will rise and the flow to the
pool will be reduced as the dirt is collected in the filter.
Eventually, the filter will become so plugged with dirt that it
will be necessary to perform a regeneration procedure. It is
important to know when to regenerate the filter.

The regeneration process is a mechanical means of dis­lodging the D.E.and dirt to allow better, more efficient use of
the D.E.The knob on the top of the filter is used to mechani­cally “swish” the internal grid assembly and allow it to
“bump”built-in stops.It is this “swish and bump”motion that
dislodges the D.E. and dirt.

Eventually the D.E. becomes completely loaded with dirt
so that the regeneration process becomes ineffective, at this
point cleaning is necessary. Regeneration and cleaning are
discussed further under subsequent sections of this booklet.

Please note that a filter removes suspended matter and
does not sanitize the pool. The pool water must be sanitized
and chemically balanced for sparkling clear water.

Your filtration system should be designed to meet your
local health codes. As a minimum you must be sure that your
system will turnover the total volume of water in your pool at

least two to four times in a twenty-four hour period.

Refer to Table A for Filter Operational Data.

Clear water is the result of proper filtration as well as
proper water chemistry. Pool chemistry is a specialized area
and you should consult your local pool service specialist for
specific details. In general proper sanitation requires a free
chlorine level of 1 to 2 PPM and PH range of 7.2 to 7.6

B. INSTALLATION

1-Check carton for any evidence of damage due to rough han­dling in shipment. If carton or any filter components are
damaged, notify freight carrier immediately.

2-Carefully remove the accessory package and the filter tank
from the carton.

3-Mount the filter on a permanent slab, preferably concrete
poured in a form or on a platform constructed of concrete
block or brick. DO NOT use sand to level the filter or for
pump mounting, as it will wash away.

4-Provide space and lighting for routine maintenance. Do not
mount electrical controls over the filter. One needs to be able
to stand clear of the filter when starting the pump.Minimum
space requirements may be found on the large nameplate on
the filter.

5-All filter connections are 1 1/2” NPT.Note each connection,
also allows the use of an optional Quick Connect fitting if
desired. This allows for quick and easy removal of the filter.
Be certain the piping is as follows: A) From the pool to the
inlet of the pump; B) From the outlet of the pump to the inlet
of the filter; C) From the outlet of the filter to the pool.

6-Assemble piping and pipe fittings to pump and filter. All
piping must conform to local and state plumbing and sani­tary codes.

7-Use sealant compounds on all male connections of pipe and
fittings.Quick Connects do not require sealant! Use only pipe
compounds suited for plastic pipe. Support pipe to prevent
strains on filter, pump or valve.

READ AND FOLLOW ALL SAFETY INSTRUCTIONS

STAR DE FILTER PAGE 3

WARNING

Failure to operate your filter system or inadequate
filtration can cause pool water clarity obstructing
visibility in your pool and can allow diving into or on top
of obscured objects which can cause serious personal
injury or drowning.

FILTER OPERATIONAL DATA TABLE A