I've been on TF method since day one, which was late March. I run my 2 speed pump on low for 10 hours per day (5 morning and 5 evening), in hopes of saving electricity. Last week I noticed slight algae on the down stream side of the steps and attributed it to lack of use. When I would brush I would see a "puff" of smoke. I did a slam per the instructions and when I passed all of the tests, I went one more day/night to be safe. I decided to get my CYA to 40 and target 8 FC, with a minimum of 4 FC, but I never got there because my daughter had a party as the FC levels drifted back down to 8.
My daughter had a party yesterday and we ended up with about 20 teens in the pool so I brought my FC level to 12 less than 2 hours before the party. My levels last night, after the part, were as follows:
We had a lot of rain last week and with all of the splash out, I had to add water after the party yesterday. Last night, I added enough CYA to bring it back to 40 and ran the pump on high all night. I kicked it to low before work and let it run all day because of the added CYA. The OCLT this morning was only 1 ppm loss overnight, so I added enough bleach to bring it back to 8. When I got home, I saw what I thought was sand or dirt and brushed. Only in one spot, I got the "puff," but not nearly like it was before and again ONLY IN ONE SMALL area. My water temp is 92 degrees today and we have a bleach smell.
Tonight my FC level was 3.5, so I brought it back up to 8. My CC was 0 and the pH is still 7.5. I plan to test the water again tomorrow before work, but I am getting really frustrated. I think 62 ounces of bleach (plus the 11 ounces before work) for one day is a lot for a 7600 gallon pool. Is this residual from the very heavy bather load yesterday or do I need to raise the CYA and FC levels again? Is there something I'm missing?