rtk wrote in message ...
Ruth wrote:
I have two Fluval 404 on a 125 gal tank. One of them has a pretty
good rate of flow out of the output tube and has a little bit of
pressure (not like a faucet, but substantial). The other one has a
terrible flow rate and I can hardly even feel it when I put my finger
near the output tube, even though it is obviously working.

I'm relatively new to this and took over an already-set up tank. Is
there something wrong with the one Fluval, or is this unevenness
normal across filters fo the same model?

Thanks,
Ruth

Open the top. See the blue thingy? Push the lever so it doesn't cover
the hole so much.

Good advice. When I got my Fluval 2+, I noticed that the valve was
pretty much closed.

Another Ruth (Kazez)