My question would have to be; What happens when the sheet plugs up the skimmer? You would have to have a pump below the plastic or else a bottom drain which could work somehow, although I don't know how. If you took two hoses and siphoned the water out of the pool while filling with another hose on top it could work also. Maybe even one hose to siphon it. Personally I like the idea and if it ever comes up I will try it for sure.