air in return jets and my ordeal

[Isshin]

I started thinking about it and it's called plumber's dope. Plumbers putty is the stuff they use to mount sinks and stuff.

[wgregww]

I had air for a year and it ended up being a brass anchor from my winter cover lodged in the suction line where it made a 90 degree bend.

By the way, I had to cut a 1ft square dig down to the elbow cut the line to remove it.