The pool where I work is about 14 years old. I try my best to keep the water chemistry in line. Our current problem is that the crystal crete is disssolving and coating the filter grids. The boss has agreed to get it resurfaced for the first time this fall. Anything I can do to prevent it from dissolving further?
My PH tends to lower itself, but is currently about 6.8
Alkalinity is 100
CH was very high, so am guessing it is from the dissolving crystal crete
Chlorine is kept in the normal parameters, but sometimes drops when I have a day off.
Thanks for your help!!!