Just did my first full test with TF-100 kit and noticed mt CH is ridiculously high. Its always been been a little high for the pool store tests (500) but my test shows more than double theres. I've had the pool about 3 years and this is the first time I fully tested it myself. I've only shocked it once in the last year and I just tested CH on my tap water and its only 150. Just wondering if theres something else that would cause it to be that high. Guess I'll be draining my pool.
CYA 20 (currently adding conditioner to raise)
TA 50 (currently adding baking soda to raise)
CH 1250! ( I tested it twice and double checked instructions cause i didnt believe it)