I'm new to this forum so bear with me. I purchased a mesh cover this year because my safety cover of 17 years is falling apart. I have a 17x33 omni pool and was wondering what I can put in the pool to keep the cover from accumulating water on top. I see sagging each time it rains and the rain does not go through the cover into the pool like it is advertised to. Does anyone have any suggestions what I can use?