We opened our pool the middle of April and everything was fine - crystal clear water and great numbers- only little problem was a few small stains of the bpottom of the pool- probably from leaves. Ok, so I lower my chlorine level to around .5 ppm- 0- add Haviland Stain Treatment- That afternoon it rains 9 inches. Where I went wrong was that I got caught out of town for 1 1/2 days and did not attempt to raise the chlorine until the morning after I returned- needless to say I was too late- My pool is swampy green!!

I have raised the chlorine to shock level but forgot that I had to maintain it there until the CC went ot 0 so I have used around 20 gallons of bleach over the last 5 days but it is just the last 8 hours that I have maintained the FC at 25 and the CC at 0.

Pool is still green- I plan to vaccum this afternoon- How long should I maintain shock level chlorine?

Needless to say my family is not pleased with me- HELP
Readings this AM
FC 25
CC 0
CYA 65
CH 100
TA 15
PH 8