Pump strainer question

Dec 16, 2011
127
I just finished my build.... I have a 1hp pentair... I see tiny air bubbles coming from the returns.... But the pump never loses prime... Should the strainer basket on the pump be full of water? I can see water sloshing around through the clear lid... Should there be air in there? Or should it be so full you can only see "still" water....
 
In my experience once the pump primes and runs for 10 min, I have zero air (sometimes a small 2cm bubble) and it stays that way until I break vacuum on the plumbing (after the pump is off).

You have an air leak if you constantly have a significant amt of air in the pump basket.

A common place is the pump basket lid o-ring. Inspect and generously lube. After that run water over each PVC joint for about 5 minto see if air moves out of the basket.
 
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