A solid mesh swimming pool cover incorporates a mesh layer that has been successfully used as a porous mesh cover for several years with a thin impermeable base layer. A two-step polymer coating process seals the mesh to produce a solid safety swimming pool cover of unusual light weight and durability...http://www.google.se/patents/US6836907?utm_source=gb-gplus-sharePatent US6836907 - Lightweight solid safety swimming pool covers
