Eheim 2217 'chatter'

[scottward]

Hi,

I have been using an Eheim 2217 classic canister for about 4 years now; an excellent piece of hardware.

Just lately I have noticed it making a chattering sound whilst it's running. Water flow seems to be usual and the pump has been cleaned and put back together properly.

I'm thinking that something in the impellor assembly, maybe a rubber washer or something, needs replacing?

Any ideas what could be causing the noise?

Scott.

 

[dbazuin]

I am not sure about this type.
But the one I use has a floating ball so you can measure the flow.
Best is to remove this. It reduce the flow a bit and after a while the ball become less round and start to make noise.

 

[scottward]

The type I have is a classic canister, so no floating ball. Thanks for your reply all the same.

I suspect the problem is either with the ceramic shaft being worn (can they actually be worn???), the impeller itself or the little rubber bushings?

Any ideas?

Scott.

 

[dbazuin]

Sorry can't help you with the classic ones.

 

[scottward]

Looking at the spare parts available, I have the option of either a replacement impellor or a shaft/bushings kit.

I suppose the only reason a replacement shaft would ever be needed would be if I were to drop and break my existing one; as far as I'm aware a ceramic shaft will never wear out? Correct?

Bushings - could these be the worn part perhaps causing the impeller to bounce up and down?

Replacement impellor - the impellor itself looks fine. The blades are fine etc. Again, is this replacement available only in the event of a dropped impellor, or can this part actually wear?

Scott.