OK i will keep the water balanced. Do you think that adding a topical sealer might help the grout for now? When someone touches or rubs against the grout it rubs off in the form of wet sand. Not all the way to the bond beam but if I rubbed in one spot long enough I bet i could reach the bond beam. Do you think it is too far gone and I should blast it all off now or can I save it for the fall when we are ready to close the pool?