I had a small leak as evidenced by moisture forming at the base of my pump motor, so I replaced all of the gaskets and the shaft seal (Pentair Challenger). I have reassembled it several times because of a steady leak from the housing and seal plate. No amount of tightening the band clamp seems to affect the leak, and at this point I feel like I'm closer to bending the metal of the clamp than tightening the housing any further. I have tried the rubber mallet trick, I have re-lubed the main gasket that goes between the housing and the seal plate. That gasket is the square one, not the round one. I don't see any cracks in the housing or seal plate. At this point the leak is far worse than it was, and my back is killing me. Is there anything to try other than a new band clamp? The current one appears fine by the way.
Edit: here's a picture of it when running. You can see a big drip where the motor meets the seal plate, and a stream that is coming from behind the bolt. I suppose you can also see quite a bit of corrosion from being outside in South Louisiana weather (96% humidity year round):
Edit: here's a picture of it when running. You can see a big drip where the motor meets the seal plate, and a stream that is coming from behind the bolt. I suppose you can also see quite a bit of corrosion from being outside in South Louisiana weather (96% humidity year round):
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