Doughboy AquaView 0-1709-014 User manual

AquaView
Sand Filter with 7 Position Valve
Model — 0-1709-014 14" Sand Filter
Model — 0-1709-017 17" Sand Filter
Model — 0-1709-020 20" Sand Filter
Model — 0-1709-024 24" Sand Filter
Owner's Guide
365-2078
™

2
Before you begin installing your filter,
refer to your pump owners guide for
very important installation and
electrical information related to your
filter.
ELECTRICAL/BUILDING
PERMIT
Local building codes may require
obtaining an electrical or building
permit and may have regulations on
set backs and barriers that must be
followed.
ELECTRICAL
We recommend you have a qualified
electrical contractor install the
electrical power supply as specified
in your pump instructions.
INSTALLED LOCATION
Position filter, pump and any other
related components a minimum of 6
feet from pool to prevent their being
used as a means to climb into the
pool by young children. DO NOT
store toys, chairs, tables, containers
or other objects within 6 feet of the
pool for the same reason.
WARNING
SEVERE ELECTRICAL SHOCK
could result if you install your filter
and pump on a deck or above pool
water level. They could fall into the
water, causing severe shock or
electrocution. DO NOT install on a
deck or other surface at, above or
slightly below the top rail of the pool.
PROPERLY SUPPORTED
Filter, pump and any other related
components should be properly
supported to prevent damage from
misalignment, settlement, vibration
and mounted so as to minimize the
potential for the accumulation of
debris and moisture.
ACCESSIBILITY
The circulation system
components should be installed to
allow accessibility for inspection,
repair or replacement. DO NOT
alter the pump electrical cord in any
way or change the plug end to any
style. DO NOT use an extension
cord(s). Severe electrical shock may
occur.
PREVENT SEVERE SHOCK
To prevent the risk of severe electri-
cal shock, plug your pump cord end
into a grounding type receptacle
protected by a ground fault circuit
interrupter (GFCI). Contact a quali-
fied electrician if you cannot verify
that the receptacle is protected by a
GFCI.
DO NOT allow children to operate or
play around this product unless they
are closely supervised by adults at all
times.
Replace damaged cord immediately
to reduce the risk of electrical shock.
DO NOT BURY CORD
An unexposed cord may accidentally
become damaged or severed by a
sharp object or shovel resulting in
severe electrical shock. Position cord
to prevent accidental damage from
lawn mowers, hedge trimmers or
other equipment.
BARE FEET/WET GROUND
This is a dangerous combination
around electrical equipment. Always
be sure the ground under your feet
and body is dry before you touch
electrical equipment. Failure to heed
this warning may cause severe
personal injury or electrocution due
to severe electrical shock.
WARNING
Avoid direct water spraying with a
garden hose around electrical
outlets, pump or any other electrical
devices. Severe electrical shock or
electrocution may occur.
SERVICING YOUR PUMP
Always unplug your pump from the
receptacle before servicing, adjusting
or repairing.
“READ ALL INSTRUCTIONS.” Failure to follow these important safety
instructions and other basic safety precautions may result in serious
personal injury.
IMPORTANT SAFETY INSTRUCTIONS

3
FIG. 1
Did you read the IMPORTANT
SAFETY INSTRUCTIONS? If not,
READ THEM NOW. They contain
very important safety information
related to the installation of your filter.
Familiarize yourself with the installa-
tion sequences by reading these
instructions first. AVOID SHORT-
CUTS that may result in reworking
the installation.
BEFORE YOU BEGIN
The pool must be properly erected
per your pool assembly and installa-
tion instructions before installing the
filter. Install the surface skimmer and
return fitting.
Before completing the filling of the
pool to the water level indicator
marks on the skimmer face plate, the
filter and pump should be installed
with all connections secured tightly.
TOOLS REQUIRED
• 3/8" nut driver
• Flat head screwdriver
• Flat shovel
• Carpenter Level
• Tape Measure
• 5/16" Nut Driver (optional)
MATERIALS REQUIRED
• Nine 12" x 12" patio blocks
• Waste hose - 1-1/2" inside
diameter
• 1-1/2" hose clamp
• Silicone lubricant (available at
pool dealer)and included
• Ordinary plastic bag
• #20 grade filter sand
Model 014 - 80 lbs.
Model 017 - 100 lbs.
Model 020 - 150 lbs.
Model 024 - 300 lbs.
INSTALLATION
INSTALLATION LOCATION
Install your filter and pump and any
other related components at least 6
feet from the pool to prevent their
being used as a means of access to
the pool by young children. Patio
blocks provide firm support and
keep standing water and weeds
away from electrical parts. DO NOT
install your filter and pump base
directly on the ground surface. Settling
and stressing of circulation lines may
occur during wet seasons. Position
patio blocks as illustrated, use a
shovel and carpenter’s level to level
ground before placing the blocks.
POSITIONING FILTER/PUMP
Position the filter and pump as shown
in Fig. 1. Make sure filter is positioned
in base correctly, once sand is
installed it will be difficult to move.
INSTALL FILTER SAND
Your filter is designed to provide peak
performance using #20 grade filter
(.4/.5 mm) sand. The sand should
be uniform in size and appear as
crushed sand with sharp edges.
Rounded river bed sand will not filter
properly. Consult your local pool
store.
REMOVE VALVE
Remove valve from tank by pulling up
and twisting back and forth.
COVER RISER TUBE
Slip a plastic bag over the riser tube
and secure with rubber band.
INSTALL SAND
Gently pour filter sand into tank and
level surface with palm of hand.
Remove any sand from plastic bag
and tank flange sealing surface.
Remove rubber band and plastic bag.
REINSTALL VALVE
See illustrations on following page to
install the valve and o-rings.
Position large square o-ring (308-
1282) on bottom groove of valve,
position the large round o-ring(308-
1280) all the way up to the valve
flange. Lubricate o-ring with non-
petroleum grease. Place valve on
tank top and press firmly until round
o-ring is seated with tank flange.
Install tank clamp, sandwiching valve
and tank flanges. Tighten clamp
screws securely but do not over-tighten.
Please refer to the pictures on the
following page for proper O-ring
placement.
RETURN
SKIMMER
PUMP FILTER
5 FT.
FIG 1
NEW FILTER START UP
AFTER ADDING THE CORRECT
SAND, #20 grade filter (.4/.5
mm) sand,AND CORRECT
AMOUNT.
BACKWASH FILTER PRIOR TO
RUNNING IN FILTER POSITION.
THIS WILL CLEAN THE SAND AND
ELIMINATE FINE SAND
PARTICLES FROM ENTERING
POOL AND PLUGGING UP
UNDERDRAIN SLOTS. AFTER
BACKWASHING, RUN IN FILTER
TO WASTE FOR APPROX. 30
SECONDS TO FLUSH FILTER.
NOW THE UNIT IS READY FOR
NORMAL FILTERING OPERATION.

4
VALVE INSTALLATION - PLEASE READ
Position round o-ring all the way to the flange and
position the square o-ring in the groove as shown.
Lubricate with non-petroleum grease.
STEP 2
Position valve to tank by aligning
underdrain riser tube with opening
in bottom of valve.
Press down firmly until the large
round o-ring is seated to tank
flange.
STEP 3
Complete by installing tank clamp
halves. Tighten clamp screws
securely but do not over-tighten.
STEP 4
STEP 1
ROUND O-RING POSITION:
PUSH ALL THE WAY UP
PAST GROOVE
SQUARE O-RING POSITION:
IN GROOVE

5
INSTALL HOSES
See Fig. 1 and Exploded
Parts Illustration
IMPORTANT: Incorrect hose
hookup could cause damage to your
filter system. Follow the instructions
below carefully.
Suction and return lines should be
partially buried to prevent accidental
tripping that could cause personal
injury or damage to the filter system.
Be sure the hoses are routed so that
water flow through them is not
restricted.
Starting at least 12" from the pool
wall, make two 3-4" deep trenches,
one from the pool skimmer to the
front of the pump and the other from
the pool return fitting to the filter/
valve return port.
The two 8 ft. long hoses (Item 13
Model 014, 017 Item 21 Model 020,
024), are interchangeable and used
for the suction and return lines. Slip
a hose clamp over the ends of each
hose prior to installing. Connect one
long hose (suction line) between the
pool skimmer and front port of the
pump. Connect the other long hose
(return line) between the pool return
fitting and the filter/valve port marked
"RETURN". Connect the short hose
(Item 15 Model 014, 017, Item 23
Model 020, 024) between the pump
discharge port (located at top of
pump) and the filter/valve port
marked "PUMP". Tighten clamps
firmly using a flathead screwdriver or
5/16" nutdriver. Cover the trenches
with a firm board when finished.
NOTE: Do not completely bury the
hoses with dirt.
NEW FILTER START UP
AFTER ADDING THE CORRECT
SAND, #20 grade filter (.4/.5
mm) sand,AND CORRECT
AMOUNT.
BACKWASH FILTER PRIOR TO
RUNNING IN FILTER POSITION.
THIS WILL CLEAN THE SAND AND
ELIMINATE FINE SAND
PARTICLES FROM ENTERING
POOL AND PLUGGING UP
UNDERDRAIN SLOTS. AFTER
BACKWASHING, RUN IN FILTER
TO WASTE FOR APPROX. 30
SECONDS TO FLUSH FILTER.
NOW THE UNIT IS READY FOR
NORMAL FILTERING OPERATION.

6
WASTE LINE HOOKUP
The discharge waste water will
contain pool water treatment chemi-
cals that may harm certain plants
and vegetation. Therefore, position
the discharge end of the waste line in
a safe, out-of-sight area capable of
accepting 150 to 200 gallons of
waste water. Install a 1-1/2" inside
diameter waste discharge hose (not
supplied) on the waste port near
where the sight glass is located on
the valve. Slip a 1-1/2" hose clamp
(not supplied) over one end of the
hose. Then, push hose onto the port
fully and tighten clamp firmly.
plugging the underdrain slots.
Because pool water is lost during
this operation (150 to 200
gallons) keep a close check on
pool water level. Never let water
level get so low that no water
flows to pump. Refill pool as
required.
5. Push down on the valve handle
and rotate to the FILTER position
and start pump. Note the
pressure reading on your pres-
sure gauge for future reference
of when to backwash.
6. Check all fittings and hoses for
leaks and correct if
necessary.
FILTER OPERATION
A newly filled pool is normally filled
with unfiltered water and usually
requires continuous filtering for 24 to
48 hours along with chemical treat-
ment of the pool water. Because all
pool installations vary in environmen-
tal conditions (wind, rain, airborne
debris, heat and pool use, etc.),
it is impossible to provide an accu-
rate filtering time for normal usage.
Use a trial and error method to
determine how long your filter must
operate each day. Generally, 6 to 8
hours of filtering each day is suffi-
cient to maintain pool clarity if the
pool chemical treatment is correct.
When possible, avoid operating your
filter during peak electricity demands
in your community. Check with your
local electric utility company for the
best times they recommend for
operating your filter pump.
WHEN TO BACKWASH
As your filter removes debris from the
pool water during the filtering pro-
cess, the return flow will gradually
reduce. Backwash when the pres-
sure gauge increases 5 to 7 pounds
above the clean filter starting pres-
sure. Normal backwash duration is
1-1/2 to 2 minutes or until water runs
clear.
VACUUMING YOUR POOL
When vacuuming your pool, the filter
must work harder. Consequently, all
of that debris is caught in the filter at
a very rapid rate. This causes a rapid
increase in filter pressure as will be
BACKWASH: Backwashing reverses
the flow of water through the filter to
flush out the dirt and debris, and
waste water is discharged to waste
from the valve body port with sight
glass.
FILTER TO WASTE: Place the valve
in the “Filter to waste” position after
backwashing your filter. (Normally,
for only 10 seconds.)
PUMP TO WASTE: This position
allows you to vacuum heavy debris
or larger amounts of settled contami-
nants from the pool floor directly to
waste.
RECIRCULATE POSITION: This
position allows you to increase the
water flow rate to circulate chemicals
throughout the pool more quickly.
Pool water passes through the valve
on top of the filter bypassing internal
filter components and travels back to
the pool at a rapid rate.
WINTERIZE POSITION: This posi-
tion allows you to drain trapped water
from the filter valve and relieve
compression on the rotor valve
gasket during winter storage.
CLOSED POSITION: When servicing
the filter, place the valve in the
“Closed” position to stop backflow of
water from pump. Stuff rag in return
fitting.
INITIAL START UP
Before you begin filtering your pool,
the filter sand must be backwashed
thoroughly to remove the extra fine
sand grains normally found in new
filter sand.
1. Loosen the pump strainer pot lid
to allow air to escape. Tighten lid
when water begins to flow
between strainer pot lid and
strainer body. Do not over
tighten.
2. Plug in your pump to the GFCI
protected receptacle. Refer to
WARNINGS.
3. Push down on the valve handle
and rotate to the BACKWASH
position. Make sure valve handle
indexes into the alignment slots
on valve.
4. Start pump. During this initial
start-up allow 4-5 minutes to
flush out the super-fine sand
grains to prevent them from
ELECTRICAL OUTLET
Refer to your pump owners guide for
detailed information pertaining to the
requirements and regulations for safe
electrical installation of the power
supply, receptacle outlet, switching
and ground fault interrupter.
FINISH FILLING POOL
Finish filling your pool, referring to
skimmer installation and pool assem-
bly instructions for proper water level.
VALVE OPERATION
Your new filter has seven positions of
operation, which are explained below.
To change positions of the valve,
make sure the pump is OFF. Press
down on the valve handle enough to
free the locking tab. Rotate the
handle so the tab LOCKS in the
desired position.
FILTER: Normal pool filtering
position. May also be used when
vacuuming the pool.

7
CAUTION
BEFORE removing filter or pump
from pool for servicing, prevent the
backflow of water from your skimmer
and return inlet from flowing out of
disconnected hoses.
1. Remove skimmer cover and
basket and plug inside bottom
hole with rag.
2. Referring to the instructions for
your return inlet, remove the inlet
cover and eye ball. Insert the
winterizing disc and reinstall the
cover.
3. Disconnect hoses on filter or
pump as necessary when
removing for service or
repairs.
DRAIN TANK
See Caution Above
1. Turn clamp screws counter-
clockwise to loosen clamp.
Remove clamp, valve and o-ring.
2. Remove tank drain cap to drain.
3. Place plastic bag over riser tube
in tank and secure with a rubber
band. Scoop out sand with a
medium size can and place in
plastic bag.
4. After servicing, reassemble and
install in reverse. Make sure tank
o-ring and sealing areas are free
of any sand grains.
WINTERIZING FILTER
In areas subject to freezing damage,
it is mandatory that the filter, pump
and any related components be
removed from the pool and stored
indoors. (Refer to individual compo-
nents owners guide such as pump,
skimmer, chlorinator, etc., for specific
winterizing instructions.)
1. Backwash the filter.
2. Syphon pool water level down
below skimmer opening by using
your vacuum hose and allow
water to flow to an area that can
accept a couple of thousand
gallons or more.
3. Turn clamp screws counter-
clockwise to loosen clamp.
Remove clamp, valve and o-ring.
4. Remove tank drain cap and allow
tank to drain fully.
indicated on the pressure gauge.
Frequent backwashing will be
necessary during this process
depending on the amount of sedi-
ment being vacuumed off the pool
floor. Keep a check on the pool
water level and refill as required.
MAINTENANCE
Preventative maintenance will
provide continued smooth
performance and extend the life of
your filter for many years. Neglect
will cause parts to wear or bind,
leaks to occur and result in costly
repairs. Keep moving parts lubri-
cated and a clean environment
around your filter and related compo-
nents.
LUBRICATION
There are various types of lubricants
available. However, most are in-
tended for moving metal parts.
Unfortunately, these lubricants will
harm or degrade plastics. DO NOT
use petroleum base lubricants. Many
people consider “PETROLEUM
JELLY” safe for babies, and can be
applied to anything. But, it will
DESTROY most plastics and o-ring
seals. Silicone lubricants are avail-
able at your pool dealer, and are safe
for use on plastics and o-rings.
LUBE VALVE SHAFT
To lubricate the o-ring on the valve
shaft, depress valve handle fully and
apply silicone lubricant on the shaft
between handle and valve cover.
Then, rotate handle to distribute
lubricant. Resume normal filter
operation by rotating handle to the
Filter position and start pump.
REPAIRS
Servicing should be performed by a
qualified dealer. If disassembly is
attempted, mark each of the parts
assembled position as it relates to its
mating parts. This assures proper
alignment when reassembled.
Malfunction will occur if not properly
assembled. See your dealer for
original replacement parts.
5. Disconnect all hoses.
6. Place plastic bag over riser tube
in tank and secure with a rubber
band. Scoop sand out with a
medium size can and place in
plastic bag. If sand is not badly
contaminated, save for next
season.
7. Store all components in a warm
dry area indoors.
DAMAGE CAUSED BY
FREEZING TEMPERATURES IS
NOT COVERED BY PRODUCT
WARRANTY.
NEW FILTER START UP
AFTER ADDING THE CORRECT
SAND, #20 grade filter (.4/.5
mm) sand,AND CORRECT
AMOUNT.
BACKWASH FILTER PRIOR TO
RUNNING IN FILTER POSITION.
THIS WILL CLEAN THE SAND AND
ELIMINATE FINE SAND
PARTICLES FROM ENTERING
POOL AND PLUGGING UP
UNDERDRAIN SLOTS. AFTER
BACKWASHING, RUN IN FILTER
TO WASTE FOR APPROX. 30
SECONDS TO FLUSH FILTER.
NOW THE UNIT IS READY FOR
NORMAL FILTERING OPERATION.

8
Exploded View AquaView Model 014 & 017
Doughboy Sand Filter with 7 Position Valve
TO WASTE
TO TOP
PUMP PORT
TO POOL
RETURN
TO FRONT
PUMP PORT
TO SKIMMER

9
Parts List AquaView Model 014 & 017
Doughboy Sand Filter with 7 Position Valve
ITEM PART # QTY DESCRIPTION
*1 1121-1970 1 Tank w/Decals - 014 Model
1121-1971 1 Tank w/Decals - 017 Model
2 1107-1636 1 Underdrain Base Assembly
**3 1107-1679 1 Underdrain Assembly - 014 Model
1121-1855 1 Underdrain Assembly - 017 Model
4 330-1023 4 #8 x 5/8" Screw
5 308-1280 1 Valve O-Ring
5a 308-1282 1 Square O-ring
6 330-1260 2 1/4-20 x 1-1/2" Mach. Screw
7 340-2281 2 Tank Clamp
8 395-1014 1 2" Pressure Gauge
9 340-1951 2 1-1/2" Hose Adaptor
10 1107-2468 1 Valve Assembly w/decal
11 387-1017 6 1-1/2" Hose Clamp
12 340-1892 1 1-1/2" Elbow Hose Adaptor
13 346-1077-1 2 1-1/2" x 8' Hose
14 321-1082 2 1/4-20 Hex Nut
15 346-1076-1 1 1-1/2" x 32" Hose
16 340-2200 1 Drain Screen
17 307-1001 1 Drain Cap Gasket
18 340-2276 1 Drain Cap
19 308-1225 1 5/16" Thread Seal
20 330-1245 1 5/16-18 x 1-1/4" Bolt
21 365-2078 1 Owner's Guide
22 368-1082 1 Warranty Card
* Item 1 includes items 16, 17, and 18.
**Item 3 includes items 2 and 4.
ITEM PART # QTY DESCRIPTION
23 1121-1622 1 Valve Handle
24 1121-1623 1 Handle Pin
25 1121-1624 1 Washer - Large
26 1121-1626 1 Cover
27 1121-1627 1 O-ring - #252
28 1121-1628 1 Washer - Small
29 1121-1629 1 Spring
30 1121-1630 2 O-ring Diverter
31 1121-1631 1 Diverter
32 1121-1632 1 Spider Gasket
33 1121-1633 1 Valve Body
34 1121-1636 1 Sight Glass
35 1121-1635 1 Sight Glass Gasket
36 1121-1634 6 Nut
37 1121-1625 6 Screw - M6 x 30mm
38 1121-1701 1 O-ring - #225
39 360-1764 1 Valve Decal (not shown)
VALVE ASSEMBLY

10
Exploded View AquaView Model 020 and Model 024
Doughboy Sand Filter with 7 Position Valve
TO WASTE TO POOL
RETURN
TO TOP
PUMP PORT
TO FRONT
PUMP PORT
TO SKIMMER
WARRANTY CARD
OWNER'S GUIDE
ONLY INCLUDED
WITH 24" FILTER

11
Parts List AquaView Model 020 and Model 024
Doughboy Sand Filter with 7 Position Valve
*1 1121-1972 1 Tank w/Decals Model - 020
1121-1973 1 Tank w/Decals Model - 024
2 340-2224 1 Underdrain Spacer
3 1107-1649 1 Threaded Underdrain Assembly
4 330-1023 8 #8 x 5/8" Screw
5 1121-1543 1
Tank Internal Adaptor w/Insert & Screws
6 308-1225 1 5/16" Thread Seal
7 330-1245 1 5/16-18 x 1-1/4" Bolt
8 340-2530 1 Tank Base (included with 24" filter only)
9 340-2276 1 Drain Cap
10 307-1001 1 Drain Cap Gasket
11 340-2200 1 Sand Filter Drain Screen
**12 1107-2431 1 Underdrain Assembly Model - 020
1121-2017 1 Underdrain Assembly Model - 024
13 330-1260 2 1/4-20 x 1-1/2" Mach. Screw
14 321-1082 2 1/4-20 Hex Nut
15 340-2281 2 Tank Clamp
16 308-1282 1 Square O-Ring
16a 308-1280 1 Valve O-ring
17 395-1014 1 2" Pressure Gauge
18 340-1951 2 1-1/2" Hose Adaptor
19 1107-2468 1 Valve Assembly w/Decal
20 387-1017 6 1-1/2" Hose Clamp
21 346-1077-1 2 1-1/2" x 8' Hose
22 340-1892 1 1-1/2" Hose Elbow
23 346-1076-1 1 1-1/2" x 32" Hose
24 368-1082 1 Warranty Card
25 365-2078 1 Owner's Guide
* Includes items 9, 10, and 11.
**Item12 includes items 2, 3 and 4
ITEM PART # QTY DESCRIPTION
ITEM PART # QTY DESCRIPTION
26 1121-1625 6 Screw - M6 x 30mm
27 1121-1622 1 Valve Handle
28 1121-1623 1 Handle Pin
29 1121-1624 1 Washer - Large
30 1121-1626 1 Cover
31 1121-1627 1 O-ring - #252
32 1121-1628 1 Washer - Small
33 1121-1629 1 Spring
34 1121-1630 2 O-ring Diverter
35 1121-1631 1 Diverter
36 1121-1632 1 Spider Gasket
37 1121-1633 1 Valve Body
38 1121-1636 1 Sight Glass
39 1121-1635 1 Sight Glass Gasket
40 1121-1634 6 Nut - M6
41 1121-1701 1 O-ring - #225
42 360-1764 1 Valve Decal (not shown)
VALVE ASSEMBLY

12
Change of Design: Doughboy Recreational expressly reserves the right to change or modify the design and construction
of any product in due course of our manufacturing procedures, without incurring any obligation or liability to furnish or install
such changes or modifications on products previously or subsequently sold.
Doughboy Recreational
315 N. Sebastian St. • West Helena, AR 72390
Visit our website at www.doughboy-pools.com
DB 0912-630 Made in the United States of America Copyright © 2012
TROUBLESHOOTING SAND FILTERS
PROBLEMS POSSIBLE CAUSE REMEDIES
1 - Backwash filter.
2 - Backwash filter
3 - Use #20 filter sand.
4 - Replace sand.
1 - Fill pool so water is between
marks on skimmer face plate.
2 - Clear obstruction in skimmer,
hoses or pump.
3 - Clean skimmer and strainer
baskets.
1 - Check with test kit or contact
dealer.
2 - Use #20 filter sand.
3 - Use crushed #20 filter sand.
1 - Check chemical balance.
Filter will require frequent
backwashing.
2 - Backwash filter thoroughly.
Waste hose too long or
restricted.
3 - Replace sand with #20 filter
sand.
1 - Replace underdrain.
2 - Use #20 filter sand.
1 - Actuate valve handle and
make sure valve is seated.
2 - Replace gasket or contact
dealer.
Note: Contact your pool dealer
for any problems you
cannot solve.
1 - High gauge pressure, low return
flow
2 - Low gauge pressure, low flow.
Pump sucking in air. Pump
sounds like marbles rattling in it.
3 - High flow, low or normal gauge
pressure but pool water will not
clear up.
4 - Short filter cycles.
5 - Sand entering pool.
6 - Water leaking to waste.
1 - Insufficient backwashing.
2 - Excessive contaminants or
algae in sand.
3 - Filter sand is too fine.
4 - Underdrain plugged.
1 - Water level too low in pool.
2 - Restriction on suction side of
pump.
3 - Skimmer or strainer basket
filled with debris.
1 - Pool water is chemically out
of balance.
2 - Sand too coarse.
3 - Sand grains rounded or
worn.
1 - Excessive contaminants or
algae in sand or pool.
2 - Improper backwashing.
3 - Sand too fine.
1 - Defective underdrain.
2 - Sand too fine.
1 - Valve not seated in filter
position.
2 - Defective gasket in valve
body.