My pool is 14'x23' 7,500gal IG and is very swampy dark green! Using a taylor kit (I'm waiting on a better chlorine tester to ship ) my values are:
CH: 0 (it never turned red)
PH: 14 (it was way brighter then the max reading of 8.2)
and 0 Chlorine of any sort!
My first step was going to be drain pool halfway (to lower CYA to 40) and get as much debris out as possible. Next I was planning filling back up, raising chlorine to shocking level and continuing to remove debris while I run the pump. Am I on the right track? I know My TA is a bit high but I figured the values will all change once I lower the CYA and start getting some chlorine in the water.