Hayward GM140, GM142, GM152 Owner's Manual

Your GM Series high-rate sand filter is a high performance,
totally corrosion-proof filter that blends superior flow
characteristics and features with ease of operation. It
represents the very latest in high-rate sand filter technology .
It is virtually foolproof in design and operation and when
installed, operated and maintained according to
instructions, your filter will produce clear, sparkling water
with only the least attention and care.

HOW IT WORKS

Your filter uses special filter sand to remove dirt particles
from pool water. Filter sand is loaded into the filter tank and
functions as the permanent dirt removing media. The pool
water, which contains suspended dirt particles, is pumped
through your piping system and is automatically directed by
the patented filter control valve to the top of the filter tank.
As the pool water is pumped through the filter sand, dirt
particles are trapped by the sand bed, and filtered out. The
cleaned pool water is returned from the bottom of the filter
tank, through the control valve and back to the pool through
the piping system. This entire sequence is continuous and
automatic and provides for total recirculation of pool water
through your filter and piping system.

After a period of time, the accumulated dirt in the filter
causes a resistance to flow, and the flow diminishes. This
means it is time to clean (backwash) your filter. With the
control valve in the backwash position, the water flow is
automatically reversed through the filter so that it is directed
to the bottom of the tank, up through the sand, flushing the
previously trapped dirt and debris out the waste line. Once
the filter is backwashed (cleaned) of dirt, the control valve is
manually resequenced to Rinse, and then Filter, to resume
normal filtering.

INSTALLATION

Only simple tools (screwdriver and wrenches), plus pipe
sealant for plastic adapters, are required to install and/or
service your GM filter.

The filter system should be placed on very firm ground,
or equivalent, as recommended by your pool dealer.
Position filter so that the piping connections, control valve
and winter drain are convenient and accessible for
operation, service and winterizing.

Assemble pump and pump mounting base, if supplied, to
the filter according to instructions packed with the base.

Be sure standpipe is centered in the tank opening, and
that protective cap is in position as shown. Also make
sure that standpipe is seated in bottom of tank.

IMPORTANT: All threaded fittings should be wrapped with Teflon pipe
sealant tape before assembly. Wrap 3-4 turns in a clockwise direction,
then assemble the fittings as far as possible. Then tighten with a small
wrench one additional turn. (Tighten pressure gauge by hand only!)
Damage to any part caused by over-tightening or use of any sealant
other than Teflon tape, or approved plastic pipe sealant is not covered
under warranty.

1.

2.

3.

GM SERIES

ISGM140/152-99

GM140, GM142, GM152 SERIES

REF.

NO.

1
2a
2b
2c
3a
3b

4

----

5

----

---­6

----

----

----

7

8a

----

8b

9

10
11

12

13a

13b

14
15
16
17
18
19
20

NO.

REQ’D.

1
1
1
1
1
1
1

1

1

1

1

1

1

2
2
2

1

2

1

1

1
1

1

1

1

10

1
1
1
1
1
1

PART

NO.

ECX27081
SP0714T
SP0704
GM400
GMX600F
GMX400-F
GMX600N

GMX400K

SX202S
GMX142Z1
GMX152Z1
GMX152Z15

GMX140Z2

GMX142Z15

SX160Z4

SPX1091Z6
SPX1091Z3
ECX18028

SPX1091Z41

SPX1091Z4

SPX1091Z7

SPX1105Z3

-----

-----

-----

-----

GMX152DA

SX200Q
GMX152Z4
GMX152Z5

----­EC1161
ECX1306
ECX1109

DESCRIPTION

Pressure Gauge
Multiport Valve (6-Way)
Multiport Valve (4-Way)
Multiport Valve (4-Way)
Valve/Tank O-Ring (SP0714T& SP0704)
Valve/Tank O-Ring (GM400)
Valve/Tank Flange Clamp
(SP0714T & SP0704)
Valve/Tank Flange Clamp
(GM400, Not Shown)
Sand Shield (GM152 Series)
Protector Cap 1-1/4”
Protector Cap 1-1/2”
Pump Connecting Hose 1-1/2” x 27”
(GM140HV, GM1426, GM152B,
GM1526)
Pump Connecting Hose 1-1/4” x 20”
(GM140B) - Not Shown
Pump Connecting Hose 1-1/4” x 24”
(GM142LB) - Not Shown
Pump Connecting Hose 1-1/2” x 26”
Clear (GM152K) - Not Shown

Hose Clamp
Hose Clamp (GM140) - Not Shown
Hose Clamp (GM152) - Not Shown

1-1/2” Straight Hose Adapter
(GM1426 & GM152)
1-1/2” Straight Hose Adapter
(GM140HV)
Combo Hose Adapter
(GM140B & GM142LB)
90˚ Elbow Hose Adapter (Only for
GM1426 & GM152 Series)
Standpipe (Part of Tank Ass’y.)
Filter Tank w/Underdrain & Pipe
(See below for specific Part No.)
.44 mm - .55 mm Filter Sand
Supplied Separately
Underdrain (Part of T ank Ass’y. for 140 &

142 Series).
Lateral Ass’y. w/Center Pipe (for

GM152 Series)
Lateral for GM152 Series
Tank Drain Plug (3/4”)
Drain Plug O-Ring
Hayward Above-Ground Pump
Platform Econo Base
Pump Mounting Screw
Washer

The chart below is an easy reference guide

to help distinguish the valve and tank

numbers for your specific filter.

SPECIFICATIONS

MODEL #

GM140 SERIES
GM142 SERIES
GM152 SERIES

EFFECTIVE

FILTRATION AREA

AVERAGE

FLOW RATE

MAXIMUM WORKING

PRESSURE

SUGGESTED CLEARANCE

SIDE ABOVE

MEDIA REQUIRED

TYPE* AMOUNT

FT

2

1.07

1.07

1.23

M

2

0.1

0.1

0.12

GPM
25-35
25-35
30-35

PSI

50
50
50

BAR

3.45

3.45

3.45

IN
18
18
18

IN
18
18
18

CM

46
46
46

KGS

18
23
23

LBS

40
50
50

MM

.45-.55

FILTER

SAND

CM

46
46
46

LPM
95-133
95-133

114-133

*Also known as #20 Silica Sand

GM SAND FILTER TANK & VALVE SELECTION

FIL TER SERIES

GM140

GM142

GM152

TANK

GMX140AB1
GMX140ABK1

GMX142AB1
GMX142ABK1

GMX152AB1

a

b

a

a

a

b

c

b

b

VALVE

GM400
SP0704 or SP0714T

GM400
SP0704 or SP0714T

SP0704 or SP0714T