Does copper stay on heaters or powerheads?

[TIGER SHARK]

I had a hospital tank setup that I dosed with copper. I have since taken it down and drained it. I want to move my snowflake eel to another tank but I only have the heater and powerhead from the copper tank to use. Will these be ok if I wash them really good?

[hystrix]

copper plates out on everything. There probably is some copper on those pieces. The amount is probably minimal though. If you are really concerned you can give the equipment a diluted muritic acid bath (available at pool supply stores).