I am in the process of closing my pool. My current chemical levels are as follows
22k gal, Bleach, Gunnite (pebble finish)
TA is a little low, but others are within acceptable operating range. I wanted to understand if the water temp should effect my approach to winterization. Under normal condition water temp 78-80 degrees the water has a CSI of -.26 When I lower the water temp to 56 degrees on the Pool Calculator the CSI drops further to -.46. Is this something to be concerned with during the winter months even though the water balance is with in operating levels? If so, should I raise the TA some and then raise PH to counter the water temp drop?