Skimmer Pump Noisy

bjohanson1234

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I have an octopus skimmer and within the past week it has gotten real loud. A buzzing noise. I cleaned the pump out last night in vinegar took it apart and cleaned the magnet and everything in hopes that it would help. Today it is still buzzing. It is quite if I pinch the air line almost completely closed. Do you think it might need some new bushings or something on the shaft?

I have the OTP-2000 pump on the skimmer.
 
When my skimmer pump got really loud I bought a new impeller and that fixed the buzzing. But you should try loosing the cap over the impeller just a little but, if it's too tight it rubs and makes that noise. Good luck.
 
Thanks. I just figured it got gunked up. Thats why I cleaned it.

How would I loosen the cap over the impeller? It is a quarter turn to open and remove the impeller.
 
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