Pool Doc,

Its been awhile since I have been on the forum but I thought it was not good to have your CYA so high (as 100+) as the only way to get rid of it is to drain the water from the pool and high levels of CYA force you to keep the FC very high. I always targeted a CYA of 40-60 so I could keep my FC at the 3-5 PPM level. Or am I remembering wrongly?

JP