Just curious. I'm at 89 (way too warm...all you need is a bar of soap, wash cloth, and could take a bath). I get bogged down trying to do laps when it's this warm. 79-80 is ideal for that purpose. Pool has never been above 92. See what happens with these increasingly longer and more pronounced heat waves. Wish the chiller feature on my heater would work. The tech who repaired it the other year said there wasn't much that could be done. It supposedly has the feature but has never worked.