Low system pressure

[PoolDoc]

It sounds like you have a suction leak. Is there air in the pump basket when the pump is on?

[rbienert]

Thanks for reading my post PoolDoc.

The flow into the pump basket is very limited. So it doesn't even fill up completely. Yesterday morning I had about 1-2 PSI, later in the day it built up to about 6-8 but the pump basket is still not entirely full.

[PoolDoc]

Suction leaks are hard to find. Common locations include:

+ pump basket lid gasket
+ threaded connection to pump
+ unions
+ valve stems
+ cracks in piping
+ 'stuck' skimmer weir flaps (not a 'leak', but still brings air into piping.)