INSTALLATION
6
INITIAL STARTUP OF FILTER
Be sure correct amount of filter media is in tank and that all connections have been made and are
secure. The filter system should be installed, not more than 6 feet above pool water level, on a level
concrete slab, very firm ground, or equivalent.
1.
Loading sand media. Filter sand media is loaded through the top opening of the filter.
a.
Loosen flange clamp and remove Filter Control Valve (if previously installed).
b.
Cap internal pipe with sand shield to prevent sand from entering it. Be sure pipe is securely in place in bottom
under drain hub.
c.
We recommend filling tank approximately 1/2 way with water to provide a cushioning effect then the filter sand is
poured in. This helps protect the under drain laterals from excessive shock. d. Carefully
pour in correct amount and grade of filter sand, as specified on Table 1. (Be sure center pipe
remains centered in opening). Sand surface should be leveled and should come to within 6” of the top of the filter
tank. Remove sand shield from internal pipe.
2.
Assemble Filter Control Valve to filter tank.
a
. Loosely pre-assemble both halves of the clamp with one screw and one nut, turning the nut 2 or 3 turns. Do not
tighten. Wipe filter flange clean.
b.
Insert Filter Control Valve (with valve/flange 0-ring in place) into the tank neck, taking care that the center pipe
slips into the hole in the bottom of the valve. Install clamp around tank and valve flange and assemble second
screw and nut. Tighten just enough so that the valve may be rotated on tank for final positioning.
c.
Wrap two turns of Teflon pipe sealant tape manufactured for plastic pipe on the ¼” NPT male end of gauge.
Carefully screw pressure gauge, into 1/4”NPT tapped hole in valve body. Do not over tighten.
d.
Connect pump to control valve opening marked PUMP according to instructions. After connections are made,
tighten valve flange clamp with screwdriver, tapping around clamp with screwdriver handle to help seat valve flange
clamp.
3.
Make return to pool pipe connection to control valve opening marked RETURN and complete other necessary
plumbing connections, suction lines to pump, waste, etc.
4.
To prevent water leakage, be sure winter drain cap is securely in place and all pipe connections are tight.
BACKWASHING CONDITIONS
WARNING:
ALL SUCTION AND DISCHARGE VALVES MUST BE OPEN WHEN STARTING THE
SYSTEM. FAILURE TO DO SO COULD CAUSE SEVERE PERSONAL INJURY.
Once water flow is steady out the waste line, run the pump for at least 2 minutes. The initial back-
washing of the filter is recommended to remove any impurities or fine sand particles in the sand media.
1. Be sure correct amount of filter sand media is in tank and that all connections have been made and are secure.
2. Depress control valve handle and rotate to BACKWASH* position. (To prevent damage to control valve seal,
always depress handle before turning.)
3. Prime and start pump according to pump instructions (be sure all
suction and return lines are open), allowing the filter tank to fill with water.
4. Turn pump off and set valve to RINSE position. Start pump and operate until water in sight glass is clear about
1/2 to 1 minute. Turn pump off, set valve to FILTER position and restart pump. Your filter is now operating in the
normal filter mode, filtering particles from the pool water.
5. Adjust pool suction and return valves to achieve desired flow. Check system and filter for water leaks and
tighten connections, bolts, nuts, as required.
6. Note the initial pressure gauge reading when the filter is clean. (It will vary from pool to pool depending
upon the pump and general piping system). As the filter removes dirt and impurities from the pool water, the
accumulation in the filter will cause the pressure to rise and flow to diminish. When the pressure gauge reading is
8-10 PSI (0.55-0.69 BAR) higher than the initial “clean” pressure you noted, it is time to backwash (clean) the filter
(see BACKWASH under Filter Control Valve Functions.) NOTE: During initial clean-up of the pool water it may be
necessary to backwash frequently due to the unusually heavy initial dirt load in the water.
FILTER—Set valve to FILTER for normal filtering. Also use for regular vacuuming.
BACKWASH—For cleaning filter. When filter pressure gauge rises 8-10 PSI (0.55-0.69 BAR) above start-up
(clean pressure): Stop the pump, set valve to BACKWASH. Start pump and backwash until water in sight glass is
clear. Approximately 2 minutes or less depending on dirt accumulation. Proceed to RINSE.
