low PH / copper pipes -- polyphosphates
Hi, our pH level is low (6.3) and we're looking at putting in a neutralizer. One company suggested we first add polyphosphates (by replacing our whole house filter with a polyphosphate insert) for some time to recoat the inside of the pipes to help protect them. Does this make sense? About how long should we do this for?
He seemed confident that once we get the neutralizer, we won't have any future issues. Thanks!