I read through the Pool School several times. I followed the all the procedures there for shocking and testing, etc.
I got in the pool with a toothbrush and scrubbed all the little nooks and crannies that the pool brush couldn't get to. After about a week, I finally got my green swamp to turn back into the lovely blue oasis that it was. Yay!!!
I did the OCLT before I stopped shocking to make sure I had gotten everything. I'm not losing chlorine overnight, but by the middle of the day, the levels drop to 1.
I live in Phoenix, AZ and the pool gets direct sunlight pretty much all day long. Is the sun eating up all my chlorine? Should I be adding it twice a day instead of only once in the evening? Or do I need to take it back up to shock levels again?
Last nights tests (11:30pm):
This morning (8am):
This afternoon (2pm):
Nobody has used the pool today. I added 1/2 gallon 10% bleach to bring levels back up to 5.
Am I missing something?
I'm really starting to wonder how the pool guy got away with only coming once a week.