A friend of mine is having so many problems with her pool. I told her that I would ask for help. She had algae, black algea, and, in my opinion ,mustard algae. On Friday night she completely drained her pool. She power washed everything. She was told by several "pool people" to do this. She has filled har pool back up and her chemical are haywire. Her latest results are..,.FC 0, PH 8.0, TA 170, Calcium Hardness 180, CYA 0. She has already added 5 lbs of shock and uses the tablets. she has added 2 pounds of stabilizer and 2 cups of acid. I do not know what to tell her to do at this point. This forum helped me greatly get up and running a couple of years ago and my water is beatiful. I told her never fear there is plenty of help here.
I know it is an 18000 gallon pool. DE Filter. She is single and does not know anymore than that.