If unable to buy a lid. Can u make one out of materials around the house?
Free glass comes up on Craigslist or search for free items containing glass that's not tempered. Try to youtube a 'how to' cutting glass. Just ideas for u. If u have polys in there now. I'd suggest lowering the water line. Cuz they'll jump again. Good luck.
Free glass comes up on Craigslist or search for free items containing glass that's not tempered. Try to youtube a 'how to' cutting glass. Just ideas for u. If u have polys in there now. I'd suggest lowering the water line. Cuz they'll jump again. Good luck.