I just performed a full chemical test using my new TF-100 kit. I had drained 1/4+ of my pool a couple of weeks ago attempting to lower my CYA. I drained an additional 1/4+ a couple of days ago. Today my CYA registered 45. Good. However my CH remains high at 850! I tested my pool-fill water and it registered 500 so I'm fighting a losing battle here I think. I watched a short video posted by a member showing an alternate method of adding regents but I'm not sure the method described would...
CH way out of range
CH way out of range
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