Winter here, shut the SWG off yesterday. Since part of the lower FC/CYA ratio used for SWG is because of super-chlorination and other harsh reactions inside the SWG cell, should I now adopt the 7.5% bare minimum FC/CYA ratio? Pool will be open, running, no cover, and unused (by humans) for the winter. Before the water got below 60 degrees (15C), I was running 20% and 4 hours to deliver 0.5 PPM FC per day.
Thanks heaps for your opinion on this.
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