I don't have any algae issues in the pool and want to close/Winterize on Saturday. Can I just raise the chlorine up to shock level the day that I am closing the pool or does the shock level need to be maintained for several days prior to closing???
Also, if my CYA is at 40 - where should I be in terms of shock level? The Chlorine/CYA chart shows I should be at 16. Is that an adequate level for closing for the entire Winter as well as undertaking the SLAM process?
Thanks!
Dan
Also, if my CYA is at 40 - where should I be in terms of shock level? The Chlorine/CYA chart shows I should be at 16. Is that an adequate level for closing for the entire Winter as well as undertaking the SLAM process?
Thanks!
Dan