A lot of pools have their "own" pH that they like to stabilize at--mine likes to stay around 7.8 if I don't fight it--and my kids say that the 7.8 is easier on their eyes than the lower pH anyway. Keep in mind, though, that if you start fighting algae again that the lower pH helps the chlorine be more effective, although you never want to get it lower than 7.0, and I would definitely stay above 7.2.

Janet