I wonder how stable copper is in pool water.
I have an old pool with two returns which are nothing but
unthreaded pipe holes of 13/16" ID.
I want to install eyeball jet returns for directing the flow in order to maximize circulation and I found a copper pipe that fits inside the hole. From there on I can build it up with a couple of PVC adapters where I can fit the standard eyeballs which are designed for 1 1/2" PVC.
I wonder how stable copper is in FC levels between 4 and 20. Is copper commonly used in pool equipment?