Brand New Booster Pump Making Loud Noises

[smokey75]

I'm suspecting air in the line also, but I don't really see air coming out of the cleaner hookup. How do you troubleshoot where air might be getting into the system?

[Poconos]

If air is getting into the system it would be on the suction side of the main pump. As I said, never played with a booster pump but I am assuming the inlet to the booster is not under a vacuum like the main pump. May be wrong though. In any case one highly probable place is the pump basket lid. Another could be any non-PVC joints. i.e. black poly pipe, barbed fittings, and hose clamps. Next on the list would be valves and finally bad PVC joints. If it is air then you should see bubbles in the main pump basket. It's odd you don't see bubbles out the returns. First thing to try would be to get some silicone grease if you don't have some already, pool store, and then clean and lube the pump basket gasket. First try that and see what happens. If that isn't it we'll go to the next step.
Al