First some info on my pool. It's inground, pebbletech finish, salt water chlorinated, with attached spa. My latest numbers are:
FC - 5
CC - 0
Cya - 40
PH - 7.4-7.6
TA - 50
Cal - 300
Salt - 2900 ppm
Temp - 85
I've had this pool for about 4 years, I change the water every 2 years. For the longest time I fought to maintain a TA of 80-120. This required my adding a 12 lb bag of baking soda every couple of months or so. Over those 2 months the TA would slowly go from 120 to 60. I also needed to add about 2-3 quarts of acid per week to maintain Ph in the 7.2-7.4 range, the strong acid, not the half strength stuff they sell now in some places. I noticed though that when my TA is low I dont need to add acid nearly as often. With the TA at 50 now, I have gone almost a month without having to add acid, it's always around 7.4-7.6. In essence I feel that my pool is telling me to quit adding baking soda, it likes a TA in the very low range, thank you very much. Should I leave it be?
FC - 5
CC - 0
Cya - 40
PH - 7.4-7.6
TA - 50
Cal - 300
Salt - 2900 ppm
Temp - 85
I've had this pool for about 4 years, I change the water every 2 years. For the longest time I fought to maintain a TA of 80-120. This required my adding a 12 lb bag of baking soda every couple of months or so. Over those 2 months the TA would slowly go from 120 to 60. I also needed to add about 2-3 quarts of acid per week to maintain Ph in the 7.2-7.4 range, the strong acid, not the half strength stuff they sell now in some places. I noticed though that when my TA is low I dont need to add acid nearly as often. With the TA at 50 now, I have gone almost a month without having to add acid, it's always around 7.4-7.6. In essence I feel that my pool is telling me to quit adding baking soda, it likes a TA in the very low range, thank you very much. Should I leave it be?