Pool pump issue

SOURCE: my pool pump pumps water, return is low pressure

fix any air leaks on suction side of pump. Check valve positions.
Clean filters...may need to replace cartridges in cartridge filter, or take out D.E. grid assembly and clean it on a D.E. filter, or change sand in a sand filter...

SOURCE: I have a Sta-Rite pool filter. In the start up

First make sure water level is right, try leaving air valve closed and see if pressure bilds, then open slowly you should get a stream.

SOURCE: impeller rotates, seems to work well, o-rings appear to be OK, but pump will not draw water through the pump

this usually indicates an air leak in the plumbing. it will **** air because it is easier than water if there is a leak in the plumbing.
good luck David

SOURCE: I have an A.O.Smith Century Pool & Spa motor

THIS IS LIKELY CAUSED BY SOMETHING IN IMPELLER TURN OFF POWER SEE IF YOU CAN SEE ANTHING IN IT YOU HAVE TO TURN HANDEL VALVES OFF PUSH DOWN IF YOU HAVE TO OPEN PIPE IN FRONT OF PUMP I

SOURCE: air in filter on hayward above ground pool.

This is common the first 30-60 seconds after turning the filter on. The filter is purging its self of the air, sometimes algae or small debris will shoot back into the pool as well.

If it is constantly getting air then replace your o-ring on the that clear cover (Strainer Cover) make sure you use a lubricant, and like djtc66 said re-wrap all threaded areas with teflon tape.