Want to learn about pool chemistry

[PoolDoc]

All looks fine; assuming you are algae-free, lowering the chlorine is appropriate.

Solar irradiation is a factor in chlorine use, but the mathematical correlation is not nearly good enough to improve on the results you can get by testing 2x per week, and 'getting the feel' for your pool.

[touchton]

Thanks for your help Ben. I've set the SWCG to 20% and I'm only running the pump for 12 hours a day. It's been running this way for 10 days now. The chlorine level is coming down. It's no longer orange; it's yellow but a little darker than the 5 - 10 reading. The water looks good. I'm still trying to get a grip on exactly what numbers I'm looking for.

Thad