I think I have high CH. I'm not sure of this as I don't have a tester, and can't seem to get hold of one where I live (the pool guy had never heard of testing for Calcium). I have eliminated all other problems but still have dull, cloudy water.
My numbers are:
FC - 4
TA - 80 ppm
PH - 7.6
CYA - 50 ppm
While I track down a test kit, is there an alternative way that I can determine whether it is my CH that is the problem?
Also, I am hoping that there is an alternative to draining my pool to lower CH if it is the problem. It is 230 000 Litres so to have to dump even 10% of the water and refill takes a day.