I suppose I need to get more involved. Traci says that the CYA uses up the whole bottle on one test and she says it doesnt read it so apparently that is not being tested. She has the hth 6-way test kit. Hopefully she is doing something wrong. We backwash filter from time to time with the pressure gets too high and after manual vacumming. I guess I will poke around for a PDF / guide here on pool maintenance & BBB, make it into a checklist or something and make sure we are doing what we need to do, when we need to do it. Will report back.

I still am sort of stuck that how could a copper floaty ionizer or similar could hurt anything and provide some additional algae protection...

Daryl