Remove the mesh cover from the pool. Your cover may have loops and rings that attach it to the outer edges of the pool. Unclip them gently so you do not risk tearing the mesh.
Lay the cover on the ground, and spread it out completely so you can see the holes. Gently cut the frayed edges of the hole with scissors to remove the frayed edges and clean the area a bit before patching it.
Cut a patch to the correct size, using scissors. Patches come in a 12-by-12-inch sheet.
Remove the backing of one patch, and spread a thin layer of rubber cement along the back to add bonding strength.
Place the patch over the hole carefully and gently press around the edges. Allow to dry for an hour, and then flip the cover over.
Add a second patch, with rubber cement spread on the back, to the backside of the hole. Double-sided mesh patching will ensure a strong repair. Allow to dry for an hour.
Stitch along the edges of the patch, using an awl and fishing line. The awl is a pointed metal tool used to punch holes in thick material. Punch small holes around the patch edges, and then loop the fishing wire through the holes for added patch strength.