Steve_in_C
Bronze Supporter
Mesh cover for me. But I don't really have significant snow/ice issues. The only thing that gets through the mesh cover is pollen. When I open there is sometimes a "bathtub ring" of pollen around the pool. I chlorinate until reliably below 60 degrees and start back chlorinating when I hit 60 degrees. Doing this now with Waterguru which gives me daily FC, pH, and temp readings. Current chlorination 0.15ppm each day by chlorine pump. Never a green pool here.