7
Startup/Operation (See Figure 9)
Hazardous pressure. To avoid explosion and possible se-
vere or fatal injury, filter system pressure must not exceed 50 PSI (345
kPa) under any circumstances. NEVER test this filter system with com-
pressed air; never operate system with water temperature above 95° F
(35° C).
To prevent equipment damage and possible injury, turn
pump OFF before changing valve position.
NOTICE: Do not add chemicals directly into the pool skimmer. Adding
undiluted chemicals may damage equipment and void warranty.
1. Open system valves and make sure pump is filled with water. Make
sure pool water level is 2” (51mm) above bottom of skimmer open-
ing.
2. With pump OFF, set valve to ‘BACKWASH’ position.
3. Start pump, circulating water backwards through filter to waste.
NOTICE: To prevent pump from running dry, be sure water level
never drops below bottom of skimmer inlet. Add water to pool if
necessary to keep skimmer flooded while backwashing and rinsing.
4. Backwash until water runs clear (3-5 minutes).
5. Stop pump; set valve to ‘RINSE’ position.
6. Start pump; run pump for one minute.
7. Stop pump; set valve to ‘FILTER’ position.
8. Filter is now ready for service.
9. Record clean starting filter pressure gauge reading as a reference.
10. When pool is first filled, backwash once a day until pool water is
sparkling clear. After that, backwash when pressure gauge shows 5 to
7 PSI (34.5 to 48 kPa) higher than starting pressure.
RE
CIR
CU
LA
TE
B
A
C
K
W
A
S
H
E
W
A
S
T
E
FIL
TE
R
. Install O-Ring
on valve flange.
Install valve on tank.
Tank flange must
be clean; insert
collector pipe
into bottom
of valve.
Aquatools
.WATERFORD, WI.
53185
USA
RE
CIR
CU
LA
TE
B
A
C
K
W
A
S
H
E
W
A
S
T
E
FIL
TE
R
1/4" Max.
ort labeled
PUMP" should
oint toward
ump.
Install clamp
and tighten
until clamp
ends (under
bolt) are 1/4"
apart.
If unable to
close gap
to 1/4" or less,
wait 15-30
minutes and
retighten.
Tap around
clamp while
tightening to
help seat
clamp.
Aquatools
.WATERFORD, WI.
53185
USA
736 0294
Fig. 6
Fig. 7
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
FILTER
R
IN
S
E
Valve Setting
Purpose/Flow
FILTER
Normal filtration and
vacuuming; water goes
through filter to pool.
RINSE
For initial startup cleaning
and sand bed leveling
after backwash; water goes
through filter to waste.
RECIRCULATE
Circulates pool water;
bypasses filter.
R
E
C
IR
C
U
L
A
T
E
BA
CK
WAS
H
CL
OS
ED
W
IN
T
E
R
IZ
E
W
A
S
T
E
FILTE
R
RIN
S
E
R
E
C
IR
C
U
L
A
T
E
BA
CK
WA
SH
CL
O
S
E
D
W
IN
T
E
R
IZ
E
W
AS
TE
FILTER
R
IN
S
E
737 029
BACKWASH
Reverses flow for
cleaning; water
goes through filter
to waste.
CLOSED
Shuts off all flow to
filter and pool.
WINTERIZE
Leaves all valve ports
partially open for
winter storage.
R
E
C
IR
C
U
L
A
T
E
B
AC
KW
AS
H
CL
O
S
E
D
W
IN
T
E
R
IZ
E
W
AS
TE
FILTER
R
IN
S
E
Valve Setting
Purpose/Flow
R
E
C
IR
C
U
L
A
T
E
B
A
C
KW
AS
H
CL
OS
ED
W
IN
T
E
R
IZ
E
W
AS
TE
FILTER
R
IN
S
E
R
E
C
IR
C
U
L
A
T
E
BA
CK
WAS
H
CL
OS
ED
W
IN
T
E
R
IZ
E
W
AS
TE
FILTER
R
IN
S
E
738 029
WASTE
Lowers pool level or
drains pool; water
bypasses filter,
goes to waste.
Valve Setting
Purpose/Flow
R
E
C
IR
C
U
L
A
T
E
B
A
C
KW
ASH
CL
OS
ED
W
IN
T
E
R
IZ
E
W
A
ST
E
FILTER
R
IN
S
E
743 0294
Fig. 8
R
E
C
IR
C
U
L
A
T
E
B
AC
KW
AS
H
CL
O
S
E
D
W
IN
T
E
R
IZ
E
W
AS
TE
FILTER
R
IN
S
E
g
R
E
C
IR
C
U
L
A
T
E
BA
CK
WAS
H
CL
OS
ED
W
IN
T
E
R
IZ
E
W
A
S
T
E
FILTE
R
RIN
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
FILTER
R
IN
S
E
Fig. 9: Valve settings for startup. Stop
pump before changing valve position.
