New to board, but thought I would post for feedback for my unique situation relating to this topic. Have been reading like crazy, but the most recommended option not suitable for me. I mistakenly added stabalizer instead of a Ph chem to the pool...won't add chems at night again...now way high CYA. After a hard week of daily tweaking and backwashing got pool clear for the 4th of July, but I know not in balance and with way high CYA based off the 15 sec strip test...well over 100. My issue is I have a fiberglass pool in a low water table area (or high...can never remember the right way to call it) where lowering the pool water level for refill is not a smart thing to do. I have lowered level about 6-8 inches at a time several days in a row and probably have refilled about 2 ft of water in total overall. Any advice on how to get the CYA lowered in my situation would be appreciated. Once I receive my TF-100 test kit, I will post all numbers, but would like to try to work at reducing the CYA in the meantime. I know that there are other contributors to high CYA than just my stupidity. I am just wanting some suggestions to keep my pool on "life support" and reduce CYA until I know the proper real readings.