At the old forum, Ben talked about people successfully operating pools with a High PH, above 7.8 I do not remember the particulars of that post, but I don't get nervous when my creeps above 7.8. I do bring it back down to the 7.5 level. Maybe Ben could chime in on that when he gets the time, but I do remember it not being a big deal as compared to high CYA.

But then again, at the old forum, he also talked about running high CYA pools and only having to sanitize once a week (as long as there wasn't some event the made you have to shock your pool). It did require you to have to do the DPD test to check Cl levels and required close monitoring to insure you did not let Cl get so low that you had a algae bloom.

I am sure CarlD remembers and can contribute on the point of high PH and high CYA pools. Yes, I understand pool operating should be simple and I do not operate my pool that way, but it can be done.