Pentair
Insufficient Flow to Spa
Pump runs but spa jets are weak when using a Pentair IntelliFlo or WhisperFloXF VS as a spa pump.
Advertisements
Possible Causes
Incorrect valve positions, Dirty filter, Pump not programmed to high enough RPM for spa mode, Partially blocked spa suction or return lines
How to Fix / Troubleshooting
Safety first: Turn off pump before changing valve actuator cams or disassembling plumbing.
- Step 1 – Verify valve positions: Ensure suction and return valves are set to draw from spa and return to spa when in spa mode. Adjust actuator cams if valves do not fully rotate.
- Step 2 – Clean filter: Backwash or clean the filter to reduce system resistance.
- Step 3 – Increase spa RPM: Program a dedicated high‑speed setting for spa mode (often 2800–3450 RPM depending on plumbing) to achieve strong jet action.
- Step 4 – Check for obstructions: Inspect spa suction covers and jet orifices for debris or scale buildup and clean as needed.
Advertisements
Repair Difficulty
Easy
2/5
Advertisements