My plan a few weeks ago was to just deal with the high CYA (155) til end of season, however I am so disgusted with the weather, pool temp and algae that I am dealing with the CYA RIGHT NOW!!! No one has been in the pool for over a week, having rain and 65 degree temps again in Michigan. Pool temp is 78 and falling so nobody will swim.
Sick of trying to keep chlorine level high and getting algae anyway so I am done waiting on this issue.
Drained pool down to 4" below skimmers. Filled back up 2" and drained again. Total of 10" so far. Will drain one more time to get to the total of 12" water replacement, unless you think with my CYA number I need to go to 18" replacement. This will take 2 days to refill with hose. Don't care about water temp at this point. May not be able to swim for the rest of the summer but darn it I am going to get this pool cleared up before fall!
After I test CYA level I will slam, hoping to get to 80 CYA for rest of summer and with water replacement over winter should be at about 50 for next season. Any other advice is appreciated.