I have a Juwel Rio 125 which has the standard internal filter. A while ago it started getting a bit noisy, so I took it apart. The cause of the noise appears to be the impellor, which is loose. Looking at it, the impellor is attached to a magnetic core - my question is should this be glued in place or in fact are they supposed to be loose?
Placing the two parts together, it doesn't seem possible that I could get a good (and therefore balenced) fit.
Placing the two parts together, it doesn't seem possible that I could get a good (and therefore balenced) fit.