I had a Viking Lake Shore fiberglass pool installed three years ago and every winter I've utilized a freeze protection circuit that runs the filter pump anytime the ambient air temperature goes lower than 35 degrees Fahrenheit. The temperature here (northern Arkansas) can stay below freezing for weeks at a time and of course this means wear and tear on the pump and a higher electric bill. I always leave the water level half-way up the (two) Waterway Renegade skimmers. The pool has a poured concrete cantilever deck (no tiles, etc.).
Can I allow the first inch or two of the pool water to freeze without hurting the pool or skimmers?
If the skimmers are the concern, can I safely lower the water level to barely below the skimmers and fill them with antifreeze, then allow the pool water to freeze? The mechanical equipment (pump, filter, SWG, pipes going to the jets, or coming from the skimmers) is all protected in an enclosed room so there is no possibility of that stuff freezing.
Any insight or advice is appreciated!
A few pictures: