HIGH PRESSURE
Pentair · Pentair Clean & Clear Plus Cartridge Pool Filter
The pressure gauge on the filter reads 8-10 PSI or more above the clean starting pressure (the pressure reading taken immediately after installing a freshly cleaned or new cartridge). This indicates the filter cartridge is loaded with debris and needs to be cleaned. Remove the filter lid (depressurize first by turning off the pump and opening the air relief valve), remove the cartridge element(s), and hose them clean with a garden hose. For heavily soiled cartridges, soak overnight in a cartridge cleaning solution. Rinse thoroughly before reinstalling. Record the clean starting pressure for future reference.
Error HIGH PRESSURE on the Pentair Pentair Clean & Clear Plus Cartridge Pool Filter means: High Filter Pressure. The top-ranked community fix is “Deep Clean and Soak Cartridge with Cleaning Solution” (medium difficulty, ~240 min, DIY cost: $10-$20). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · pool filter
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many pool filter repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $100-$150.
Air in Filter System
Air Relief Valve Failure
Belly Band Clamp Failure
Damaged Filter Cartridge
Drain Plug Leak
Pressure Gauge Failure
Lid O-Ring Leak
Low Filter Pressure
The Pentair Pentair Clean & Clear Plus Cartridge Pool Filter has 8 other known error codes:
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