Pentair Onga Leisuretime II Owner's Manual page 7

6. Complete all plumbing connections, using 1 1/2" (LSFII-21-40 & LSFII-25-40) or 2"
(LSFII-25-50, LSFII-28-50 & LSFII-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.
7. System is ready to start up.
8. 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
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