Our pool is 6 months old and we leave in North Texas where we were advised by everybody to keep our pool running during the winter. We have a freeze-guard system that kicks on whenever the temperature falls below 38 degrees. It's been working well but today when I checked the chemical balance in the water I realized that FC = 9.5 / PH = 7.5
My SWG is set for 10% for several weeks now. Last time I boosted the equipment was 4 weeks ago when we found a small mouse floating on the pool.
My questions are two:
1) Should I turn the SWG off or should I leave it on at 5% or even 0%?
2) How do I get the FC level down during the winter? Do I have to worry about that?
PS: The temperature here have ranged from 23-70 in the past few days.
Size: 15,500 galons
Salt Level: 2,900 ppm
Temperature in water: 38 degrees