ibr:I'd like to use a copper elbow on the clear plastic hose going in and out of the canister filter, my question is, could I use copper in a fish tank without any water problems? Both pieces will be outside, but the water will be passing through them.
Per previous posts the copper will probably work with PVC pipes but
"why are we even discussing this issue"?
The cost of a 90D PVC bend is nothing and if for some reason (which neither you nor I can anticipate) the copper elbow becomes sacrificial .....!
TR