Installation Of Multi-Port Valve - Pentair ONGA FREEFLO FFSF-21-40 Owner's Manual

Installation of Multi-Port Valve

Make sure gasket area on top of tank is free of sand before installing valve.
1. Install o-ring on valve flange; make sure o-ring is clean, and has no nicks, tears, or scrapes
and lubricate with silicon based lubricant.
2. Make sure tank and valve flanges are clean and free of sand; put valve on top of tank.
Vertical pipe of collector assembly inserts into base of valve.
3. Install clamp; make sure knob is positioned for easy access for filter maintenance.
Valve port labelled "Pump" should point toward pump.
4. Tighten clamp knob until clamp ends (under bolt) are 1/4" (6mm) apart. Tap around outside of
clamp with a mallet to help seat clamp.
5. Connect pipe from pump discharge to valve port labelled "PUMP"; use union provided.
Assemble union as follows for leak free operation:
• O-ring and sealing surfaces must be clean.
• Assemble hand tight only (No wrenches).
• NO pipe compound or teflon tape on unions.
6. Complete all plumbing connections, using 1 1/2" (FFSF-21-40 & FFSF-25-40) or 2" (FFSF-25-50,
FFSF-28-50 & FFSF-32-50) pipe to reduce pressure losses as much as possible.
7. Complete all plumbing connections, using 1 1/2" (FFSF-21-40 & FFSF-25-40) or 2" (FFSF-25-50,
FFSF-28-50 & FFSF-32-50) pipe to reduce pressure losses as much as possible.
• Pipe from valve RETURN port to pool return.
• Pipe from valve WASTE port to waste.
• Suction piping from pool to trap inlet on pump.
8. System is ready to start up.
9. If you notice a leak around the clamp area after 15-30 minutes of running, repeat steps 3-4.
If there are leaks from beneath valve/clamp area, STOP PUMP, release all pressure by turning
valve handle to 'waste', remove clamp and valve and clean sealing surfaces.
6 FREEFLO Sand Filter Owner' s Manual
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