I am back with new questions...26,000 gals. gunite. I have not been able to afford the really good test kit yet so i have the dealer test for cya. I went today and everything was pretty good 5ppm fc, 7.7 ph, 20 cya, 130 alk, phosphates 300. So here are my questions
1. I have a 1/2 lb of cya dry and a gallon of liquid how much to get my cya up?
2. is 130 really high for alk?
3. is 300 high for phosphates?
4. my ph will not stay down at 7.5 or .6 it goes up every day.

Ty for the help i know is coming...you guys are the best...by the way the pool is perfectly clear but every now and then a little yellow can be seen and brushes away easily.