I’m not sure if it has gotten worse but every week I’m having to put about half an inch of water back in the hot tub. This equates to what I would estimate as 40 or so liters of water or 2-3 home depot buckets. I don’t think it’s leaking..I believe it’s just evaporation. I’d imagine with the colder weather more heat tends to escape? I have been noticing that the side flaps of the cover are basically rigid from being frozen and the straps to close it are about the same. We have a sundance peyton which is probably about 5 years old. Does this sound like it may need a new cover? Would be nice to talk to someone directly about this as there just seems like a lot of variables to me.