Davey ECOPURE F14, F16, F18, F21, F25 & F28 Fibreglass Media Filters - Manual (Page 3)

3
c. We recommend filling tank approximately 1/2 way with water to provide
a cushion effect when 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. (Be sure centre
pipe remains centred in opening). Sand surface should be leveled and
should come to about the middle of the filter tank. Remove plastic cap
from internal pipe.
3. Assemble filter control valve to filter tank.
a. Insert filter control valve (with Oring in place) into the tank neck, taking
care that the centre pipe slips into the hole in the bottom of the valve.
b. Place two plastic clamps around valve flange and tighten just enough so
that the valve may be rotated on tank for final positioning.
c. Carefully screw pressure gauge (with Oring in place) into tapped hole in
valve body. Do not over-tighten.
IMPORTANT! Nipple must be pierced for correct operation of gauge.
Ensure gauge is mounted with nipple at TOP. Failure to comply will
VOID WARRANTY.
d. Connect pump to control valve opening marked PUMP. After connections
are made, tighten valve flange clamps with screwdriver, tapping around
clamp with screwdriver handle to help seat valve flange clamp.
4. Make return to pool pipe connection to control valve opening marked
RETURN and complete other necessary plumbing connections, suction
lines to pump, waste etc.
5. Make electrical connections to pump per pump instructions.
6. To prevent water leakage, be sure all pipe connections are tight.
WARNING
This filter operates under high pressure. When any part of the circulating
system (eg. clamp, pump, filter, valves etc.) is serviced, air can enter the
system and become pressurised. Pressurised air can cause the lid or valve
to be blown off which can result in severe injury, death or property damage.
Turn pump off before changing valve position.
To prevent damage to the pump and for proper operation of the system,
clean pump strainer and skimmer baskets regularly.
DO NOT unscrew screws of flange clamp while pump is running.