I just bought a house and it is my first pool (yay).
Unfortunately it came with 320ppm of CYA.
I just drained it & it is refilling as I type.
I live in Phoenix, AZ and the pool get probably 11-12 hours of direct sun depending on the time of year, and obviously it is intense. The water will get very warm in the summers.
I've read in the pool school that the CYA level should be 70-80 or higher if there is a lot of sun.
My question is...what do you recommend for a CYA level in Phoenix? (don't say 320!)
I'll be using just liquid chlorine instead of the tablets that likely were responsible for this situation in the first place.