I think this year I'm going to leave my pool uncovered during the winter instead of using the mesh safety cover we got with the pool and used last year. I have no idea what brand of cover it is, but I doubt very much it is a UV blocking one. My pool plumbing is simple and not very efficient due to the original owner of my house trying to build his pool as cheaply as possible. I have a removable unit that hangs over the edge of my pool and contains a skimmer and a return jet. This is the only plumbing my pool has, and there is about a 10 foot run of pvc from that skimmer contraption to the equipment pad.
My plan is to wait till the water gets into the 60's, then remove the skimmer/return jet setup and blow out the lines, drain pump/filter to winterize. But I don't feel like messing with a cover. For one thing, we put up a safety fence around the pool, so we don't need the safety the cover used to provide us for our toddler. In addition it is a pain, and we'd rather see blue water than a green cover all winter.
My questions is about chlorine consumption of the pool when the water gets below 60. I've read over and over that it goes way down when the pool is covered...but what about when it isn't covered? Surely it won't be much worse, will it?