filter question

[Cory Keeper]

If anything my mag 350 quiets down as its runs after being cleaned.

I would lean towards the shaft guide or bearing being broken. Like I said, something like that you would just replace the impeller, but for a whisper, dirt cheap.

 

[THE V]

Sometimes the impeller shaft can get a slight bend to it. I had this happen to my old whisper 20-40 that I've got on my QT tank. The thing rattled like crazy for a while so I gently bent it back. It still is much louder than it used to be but it is in the garage I really don't care.

Remember the only moving part in the filter is the impeller. So if it is making noise that is where you look. You can order them online for not that much usually if it needs to be replaced.