If you're going to use the auto cover, you may want to consider getting a blow-through gizzmo for the skimmer(s) and leave the water level where it is. The returns can be blown out and plugged with the water up (just be sure to plug them while they're bubbling). It's a 'wetter' (for whoever has to do the plugging) option, but you don't have to drain any water out.
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