I have a 16x34 in ground pool and use a mesh safety cover for the winter. I don't want to lose the safety aspect of the mesh cover but have had lot's of dirt and algae when opening in the spring. I use the typical winterizing kits when closing but still have problems when opening. I was thinking of double covering this year with a solid tarp type cover and then the safety cover over top of it. Is this a good/bad idea? Thanks for any advice.