I have to admit that I test my pool sporadically, and so I am at a loss with my test results. All tests are done with tftest kit.
This past saturday I tested the pool with the 5 drop quick test, and it was clear. Uh oh. I poured in a 182oz of 6% bleach, which according to pool calc will bring FC from 0 to about 5 in my 20k gallon pool. Water looked clear.
Sunday we had a pool party. Everybody had a great time. Nobody got itchy eyes so no CC I suppose?
Today I tested again with the 5 drop test. Clear again. Uh oh. I am now thinking my automated chlorinator may be broken, so I poured in another 182oz bottle of bleach. Then I thought maybe the chemicals went bad? I went back to the pool to get another water sample - this time right around the area where I poured in the bleach. Did the test and it was still clear. Then I used the fas dpd drop test. The water didn't turn pink. Huh? That was water right at where I poured in fresh bleach. Then I decided to take a sample of 6% bleach directly from the bottle and test that. It should turn pink after I add the powder right? Nope, it stayed clear.
I checked the chlorinator as well, and the bleach level had been going down. So I think it's pumping bleach into the pool.
So... Any suggestions here? Do I have no FC in the pool or did my chemicals turn bad? Or maybe the bleach I got at Costco is really really really old?