10
STORAGE/
WINTERIZING
Pool chemicals may give off corrosive
fumes. Store chemicals away from system in a well ven-
tilated area.
NOTICE:
Allowing water to freeze will damage filter and
void warranty. If antifreeze is needed, use propylene glycol;
it’s plastic compatible and non-toxic. Follow manufacturers
instructions. Do not use ethylene glycol based anti-freeze –
it’s toxic and it may damage plastic components.
1. Open all system valves. Set multiport valve at ‘WIN-
TERIZE’ to allow air passage to all ports (Figure 11).
2. Remove drain plug from filter.
3. Drain filter tank completely and replace drain cap
(Figure 12).
4. Cover with plastic or tarpaulin to protect from
weather.
5. Remove drain plugs from pump.
6. Protect from freezing.
Startup for Winterized Equipment:
1. Remove any temporary weather protection placed
around system for shutdown.
2. See “Startup”, Page 8, for reactivation of the filter.
3. Inspect all electrical wiring to pump for damage or
deterioration over the shutdown period. Have a quali-
fied serviceman repair/replace wiring as needed.
Inspect and tighten all watertight connections.
4. Open all valves in suction and return piping.
5. Remove any winterizing plugs in system.
6. Drain all winterizing chemicals (if used) from system;
flush system.
7. Close all drain valves and replace all drain plugs in
system.
8. Fill pool with water to proper level (see pool maufac-
turer’s instructions).
Drain Fitting Installation/Removal
NOTICE:
If pool is above height of filter, first close
valves in pump suction and return lines to prevent drain-
ing pool. If there are no shutoff valves installed, discon-
nect suction and return lines and raise ends above pool
water level.
1. Installation:
See Figure 12.
2. To Drain Filter:
A. Remove drain cap. Lateral tube should remain in
place inside drain opening to prevent sand from
draining out.
B. Open union coupling on backwash port of Multi-
Port valve. This will allow air into filter and allow
water to drain from filter tank.
C. Replace cap when tank is empty.
3. Removing Sand From Filter:
A. Remove both drain cap and slotted lateral tube (see
Figure 12). Sand and water will drain from tank.
B. To completely flush filter tank of sand, remove top
clamp and multiport valve and flush the inside of
the tank with a hose.
C. Thoroughly clean sand from all parts and from tank
drain opening before reassembling drain fitting.
R
E
C
IR
C
U
L
A
T
E
B
AC
KW
ASH
CL
OS
ED
W
IN
T
E
R
IZ
E
W
A
ST
E
FILTER
R
IN
S
E
R
E
C
IR
C
U
L
A
T
E
BA
CK
WA
SH
CL
OS
ED
W
IN
T
E
R
IZ
E
W
A
S
T
E
F
ILTER
R
IN
S
E
Figure 10: Valve settings to lower pool water level.
Stop pump before changing valve position.
R
E
C
IR
C
U
L
A
T
E
BA
CK
WA
SH
CL
OS
ED
W
IN
T
E
R
IZ
E
W
AS
TE
FILTER
R
IN
S
E
Figure 11: Valve setting for winter storage.
Stop pump before changing valve position.
About 1"
Small
O-Ring
Open end
of lateral
Seat small
O-Ring
Large
O-Ring
End of lateral is
flush with end of
drain fitting
746 0294
Figure 12: Drain Fitting Assembly. This assembly al-
lows water to drain without losing the sand out of
the filter tank.
Make sure all surfaces are clean and free of sand.
Don’t cross thread cap; don’t overtighten cap.
