What to do if my Pentair Water Filtration System has high filter pressure?
- TTara WilliamsAug 12, 2025
High filter pressure in your Pentair Water Filtration System can be due to several reasons. Insufficient backwashing is a common cause, so backwash until the effluent runs clear. Another reason could be the sand bed being plugged with mineral deposits, which requires chemically cleaning the filter. Lastly, a partially closed valve can cause high pressure; open the valve or remove any obstruction in the return line.









