so the pump has been on for about 14 hours, 6 of those hours through the solar. I put in the amount of bleach per poolmom's recommendation, and slowly added Ph throughout yesterday afternoon and evening at the return - used almost a gallon. Actually ended up overshooting the Ph a tad, but not too bad - Ph is 7.2 consistently in three areas of the pool and the spa this morning. Ch is at least 15 (I don't have a scientific method to test...my drop test stops at 5ppm, so I just put 1/3 pool water and 2/3 distilled water, and it is registering above the 5ppm sample). Interesting, TA only went down to 110 from 120. For the amount of acid I added, I would have expected a drop of about 25ppm (by my calculations for my size pool, it would take 48 oz to drop it 10ppm. Oh well, 110 is just fine by me.

I unplugged the trisensor.

So how long should I keep the cl level at 15ppm?

When is the pool safe to swim in...is it safe to swim at 15ppm of cl?

thanks for the help. things are looking better, but the proof will be in the pudding - or, actually, the absense of the mustard colored pudding on the side of my pool!