Quote Originally Posted by bbb
xcapecod83 - duraleigh's questions are excellent ones. Also, is your pool plaster or vinyl liner? If it is a vinyl liner pool, my understanding is that you have to be extra careful to keep your pool at least 1/3 full in order to keep your liner in place. Also, what method did you use to test that your CYA is 150? Are you positive it is that high?
I'm using the CYA test in the Leslie's DPD test kit (the one where you add water until the black dot at the bottom of the cylinder disappears). I checked it twice.