I have a pool of 25,000 gallons, which started growing mustard algae at the bottom. I took a water analysis at Leslie's pool supply and I was told that the CYA was above 150, so they recommended to drain 2 feet of water, which I did, and I thought my problem was resolved. But I got more confused when my next water analysis gave me a worse report. Today, my FAC is 0, my TAC is 0, my CYA is 101, the pH is 7.8, and phosphates are 500! They recommended a product for me called CYA reducer, but I'm not sure if this will benefit my pool. Or, the second option would be to drain my pool again, which I'd hate to do. After reading some of the forums here, some of you mentioned applying free chlorine or bleach?? I have no idea if this is special chlorine, or just the regular type of bleach from the stores. I also read about the BBB method, which I'm not sure how to start applying to my pool.
I have no idea what to do next, so if someone could please direct me where to start, and what the best solution would be since I am a single woman with 2 kids and I have to work every day. Thanks so much for your recommendations.