Shake it a little to see if there is alot of air close to the
impeller. USUALLY Eheims are great @ removing air though.
Also ty removing the floss and see if that fixes it since that is the
only other change you have done.

We give our pads rinses



Marcus

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Co2 tanks on sale
Power compact bulbs and MH the lowest on the net
Co2 regulator and bubble counter with needle valve $75


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On Mon, 17 Nov 2003 22:53:17 +1000, "Seweryn"
wrote:

Hello peoples!

Got a question about my 4 month old Eheim 2213...
After running silently for a while, it has developed a rattly hum when
running. I cleaned the canister out, squeezed the filter pads, rinsed the
substrate, made sure the tubes were clear, and disassembles the outer pump
components and cleaned them. But it still rattles! And it seems that the
flow rate has decreased. The only addition to the filter media was to add a
thin extra layer of floss right before the white pad. Any ideas what's going
wrong?
Along the same lines...
- When (if ever) should I replace the coarse and fine substrate??
- Do I have to replace the white pad every few months, or can I just give it
a good rinse? Could I use some generic floss instead?

Thanks for any advice,

- Seweryn