Yesterday I took the Fluval 306 canister filter that's on my 46 apart to add some Poly-Fil. But now it's rattling. As far as I can tell, the rattle is inside the filter, not from one of the tubes or the cord.. I tried moving it around, and tilting it from side to side. Some air came out, but the rattle didn't change. Any ideas?
Fluval 306 rattling
- Thread starter qquake2k
- Start date
It sounds like the impellor is not seated properly. They normally have a rubber grommet on each end of the impellor shaft, which is a steel rod that runs through the middle of the impellor. Sometimes they have a small plastic washer on the grommet and these can fall off when your aren't looking. If this happens they make noise.
Take the filter apart and make sure everything is where it should be and try again.
Take the filter apart and make sure everything is where it should be and try again.
I had a similar problem with an old external filter a few years ago. The impeller was wearing out and needed replacing. Went back to being quiet after the new one was fitted.
I took the head apart and inspected the impeller, but didn't see anything obvious. It turned freely, and no "catch" or rattle. But I cleaned it anyway, and greased it, then put it back together. Voilà, no rattle. Whatever it was, it had something to do with the impeller, as some of you suggested.
Attachments
This might sound like a silly question, but in your pictures I haven't seen the grey cover that goes on top of the filter baskets see attachment. Are you using the grey filter basket cover?
In that case since the issue only started after you added poly filter, I suspect air has gotten/is getting into the filter. Check the large rubber O ring for issues and make sure it's seated correctly. Also, make sure the top filter housing is seated properly on the canister. Lastly, make sure the grey water flow valve is fully open in the down position.
Please put the flow control leaver in the full flow position. If that doesn't help, temporarily remove the poly filter material and retest.
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