No, he needs to bring his pH up. Early this afternoon, he posted that his pH was 6.2. That is dangerously low. I'm not sure how he got that reading since most testers won't register anything lower than 6.8, but nevertheless, he needs to be bringing it up to at least 7.0. As I said above, since there is a metals issue, he wants to keep pH on the low end of normal -- 7.4 or lower and probably 7.2 is better but he definitely MUST get it above 7.0 ASAP or risk damage to his pool.