thanks sean..bit of a mistype on my part..as of today, it is able to go up to 100 percent, not that i want or need to run it that high..the water is only about 62 now versus 55 but warm enough for my autopilot chlorination "range" to go up. that's a good explanation on the bubbles..remembering now that i didn't run it until the heat of july last year after my install so this is the first time i've run the autopilot when the water is still quite cool. in the fall last year, i was running the heater still right up until closing so the water never did get below 75 from what i recall at closing time in september. and i didn't remember bubbles so i was a bit concerned..feel better now and i have no airleaks in pipes so i knew it wasn't that.

no memorial day wknd here and wouldn't matter cause we have another cold day to get through. 12 mm of rain between now and tomorrow night and low of 9C tomorrow..lovely summer weather, isn't it? at least it was a 20+ weekend and my solar cover is on!