Quote Originally Posted by rdlangston13 View Post
I am having the same issue with my black impellers, just ordered 3 new orange ones to replace them hoping this fixes the sticking problem. All three of mine stick. The tightness of the cover bolts can affect this? Maybe when i swap them out i need to not install the bolts as tight as well.
Also take a look at the brass cover plate that faces the impeller. Mine had a few black marks from the black rubber. Felt uneven. I sanded that smooth.

The screws need to be tight enough to put pressure on that thin rubber gasket the to prevent leaks. Not sure that would effect the impeller sticking.

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