I just tested my CH and it came out to 640, but it should be somewhere around 300.
Is there any way to lower it other than adding more water? And what will happen if I just leave things as they are until evaporation causes enough water loss and replacement to bring it into the right range? According to the pool calculator I'd have to replace 53% of my water or over 15,000 gallons!!!!
I had a major calicum scale problem when the pool was opened this year, but after two no-drain acid washes, the walls and floors are smooth again, but I'm still kicking up white "dust" when I brush. (Don't know if that's related or not, but it is another data point)
Here are the total test numbers:
pH 8.2 (currently much lower)
CYA 54 (I know I have to bring this up)
Do I need to do anything drastic about my high CH or can I ride it out?