Pentair FNS Plus FNSP 24 Owner's Manual page 6

3. Remove pump lid and clean basket. Replace basket and secure lid.
4. Valve Procedures.
a. Push-Pull Valve.
(1) Twist to unlock plunger, then raise handle as far as it will go. Turn handle clockwise to lock lower pin in underside of
cap.
(2) Open the High Flow™ manual air relief valve until it snaps into the full open position (this only requires a
quarter turn counter-clockwise). Opening this valve rapidly releases air trapped in the filter.
(3) Stand clear of the filter tank, then start the pump.
(4) Close the High Flow™ manual air relief valve after a steady stream of water appears.
(5) When water flows clear in sight glass or discharge line, shut off pump.
(6) Position the Push-Pull valve to the normal FILTER setting by lowering the handle and twisting it to the locked
position.
(7) Open High Flow™ manual air relief valve on top of separation tank, wait for water to stop draining from Air Relief.
(8) Loosen Separation Tank clamp and lift off Separation Tank lid.
(9) Remove bag and dispose of diatomite in trash can. Replace clean bag and set bag in seat (curved portion of
Separation Tank). Put plastic hold-down in place to prevent earth from going back into pool, one double bag is
furnished with Separation Tank.
Filter waste and diatomite are trapped by the heavy-duty double lined Separation Tank bag. Contents are to be placed in a
waste or trash container, clean the bag and re-insert in the Separation Tank. DO NOT LEAVE THE SEPARATION TANK
BAG EXPOSED IN THE SUN. The manufacturer cannot assume any responsibility for torn, or damaged bags, if left in the
sun to dry.
(10) Replace Separation Tank lid and secure Separation Tank lid clamp. Follow instructions in Section B, CLAMP
INSTALLATION INSTRUCTIONS.
(11) Leave valve in normal FILTER position.
(12) Follow instructions in Section C, SYSTEM RESTART INSTRUCTIONS to start up filter.
(13) Introduce the recommended amount of diatomite per Section D, COATING THE FILTER ELEMENTS.
Your filter is now in operation.
b. Multiport Rotary Valve. After completing steps 1 to 3 of this section, (G), perform the following steps:
(1) Position valve to BACKWASH setting.
(2) Open the High Flow™ manual air relief valve until it snaps into the full open position (this only requires a
quarter turn counter-clockwise). Opening this valve rapidly releases air trapped in the filter.
(3) Stand clear of the filter tank, then start the pump.
(4) Close the High Flow™ manual air relief valve after a steady stream of water appears.
(5) When sight glass shows a clear flow of water, shut off pump.
(6) Position Multiport Rotary valve to CLOSED setting.
(7) Follow steps 4.a (7-13) in this section, (G), above.
H. CLEANING FILTER ELEMENTS.
To completely disassemble the filter element assembly for a more thorough cleaning of the individual elements, stand the
element assembly on the deck exactly as it comes out of the filter with the manifold on top.
1. Disassembly:
a. Remove plastic stand-offs from tie rod ends (on some models).
b. Using a 1/2 in. wrench or deep socket, remove both nuts from the manifold.
c. Remove top manifold by holding lift handles and pulling straight up.
d. Gently remove the plastic template from the elements.
e. Remove elements one at a time from the bottom spreader.
P/N 190033
NOTE
6 Rev. G 6-27-03