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Why is my filter pressure too high?

A pool filter should have a pressure of approximately 10 - 15 psi. Anything over 20 psi is considered high pressure and can damage your pool equipment. To resolve the issue and bring the pressure back to normal, check for the following:

  • Clogged filter. This is the most common issue when it comes to excessive pressure. Over time, the filter can get jammed up with fine debris, chemicals, and oils. Removing larger debris does not free the filter of these other materials. Use a filter cleaning product to restore the normal water flow.
  • Clogged breather tube. Filters often have a tube designed to automatically expel air trapped at the top of the filter. If this tube becomes jammed, high pressure results. Check this tube and clear it if necessary.
  • Suction air leak. A large suction leak may cause the pump to lose prime before the pressure builds up. But in the case of a small suction leak, air is pulled into the system and builds up in the top of the filter tank. To correct the problem, inspect the system for leaks and patch them. The primary culprit tends to be connections you have recently changed.
  • Wrong size pump. This problem will reveal itself as soon as you begin running the pump. When your pump is too large, it is attempting to move more water through your pipes and filter than they can handle. Replacing the pump with the correct size is the best solution.

If you still need help or need to change the sand as a result of high pressure please contact us we are here to help.

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