thanks for the tip... I decided to just fill it with the city water supply, however part way through my dear husband was trying to be helpful and kicked on the well water and had both going in... so I'd say we're 2/3 city and 1/3 well water.

Last night our numbers were: Chlorine 1.5 , Ph 7.2, and TA 160 (same numbers before any swimmers this morning)

I added 1 lb 11 oz of stabilizer to the pool this morning (in a sock, attached to a floating object so it doesn't rest on the liner) Also added 3 cups of 6% bleach this afternoon (we were at .5), and after a full day of sun, and a lot of swimmers, our numbers tonight were Chlorine 1.0 and PH 7.5 (didn't test the rest). Planning to toss in another 3 cups of bleach and set the filter to run another 4 hours during the night.

After a 100 degree day, our water temp went from a frigid 63 last night, to a bearable 77 this afternoon. The kids should sleep very well tonight!