mess after vacation

[Watermom]

Actually, your CC is way too high. Ideally, you want it to be 0 or at least no higher than 0.5ppm. When it is higher than that, you need to shock the pool to get rid of it. This chart shows needed shock level which is based on your CYA level. (http://pool9.net/cl-cya/) So, with a CYA of 35, your shock level is 15ppm. You want to keep the chlorine at shock level until you meet the 3 criteria which are listed in post #12 above.