Our 1.5 HP pentair challenger pump isnt holding its prime
Usually, if a pump will not hold its prime, there is an air leak somewhere in the system. Things to look for are small leaks around the equipment-could be a bad o-ring. If you do not see any leaks, turn off the pump, remove the lid from the basket, check it for a hairline crack and check the o-ring under the lid to see if it is the cause of the loss of pressure.
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