I have a noisy eheim 2213. The impeller is old so that might be the problem, but if it isn't, I don't want to buy a new impeller and still have a noisy filter. I already have two powerheads at home, maxijet and CAP(294gph and 264gph). Will these powerheads be able to handle the strain of pushing or pulling water through the tubes? And should the powerheads be attached to the canister intake or canister outtake?
