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bryanmooreSep 8, 2025
Why is my Pentair Control Unit backwashing or purging at an excessively low or high rate?
- OodavisSep 8, 2025
If your Pentair Control Unit is backwashing or purging at an excessively low or high rate, it might be due to an incorrect drain control being used. Replace it with the correct size controller. Another cause could be foreign matter affecting valve operation; remove the drain control and clean the ball and seat.