Pool liner repair kits contain patching material and water/acrylic compatible adhesive. It's basically going to look like you've got a bandaid on a bong. It ain't pretty but it works (when I had a pool I was patching it all the time b/c of broken glass. No more than $10 top for the kit. Will look ugly.
sInce it's acrylic you can't get it welded. You can buy expensive acrylic welding glues though.