Maybe I should say, "When the water temp drops below 60 degrees, do we need to do anything other than the ordinary closing procedures if we have plaster still curing?" :?
Thanks, Kurt, but when is it going to start ACTING like OLD plaster? I still add MA every 3 or 4 days....7 or 8 cups per week! What happens to the chemistry when the water temp is below 60 degrees?
I don't know. Mine is almost two years old and my pH is still constantly rising. Even with a total alkalinity of 60-80 ppm (depending on the pH, 50-80 ppm borates, and using tri-chlor most of this summer. Some pools are just acid eaters.
I don't close as the climate here is mild. I probably added acid once a week or so from November through March/April. I try not to fight the pH too much. I let it drift up to 8 or even a little higher and then only take it back down to 7.8 or so. I use a lot less acid this way than when I was trying to keep the pH down in the 7.2-7.6 range.
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