Please bare with me as i try to figure this out, Glad to be with TFP,This site has to be the best one out there.
We retired to Panama a few years ago from Canada. Had to have a pool here but did not know the black mould and algae was so wide spread here. Put in a copper ionizer, best move we ever made. Installed 10 more units. No more algae in water but still have growth of black and green on inferior grout that they use here. I have no growth on my painted surface.
Sounds like borax is the answer for clients with bad grout. But is it compatible with the copper at 4 ppm. and could i use less borax? We use salt to bump up the TDS to 1000 ppm, will we still need salt or will the borax bring up TDS? (for EC) Sorry if this is in the wrong place. Thankyou.