Can I fix a vinyl pool liner tear myself, or do I need to call a pro?

Yes, you can fix most vinyl liner tears yourself using a proper underwater patch kit — not duct tape or superglue. Don’t drain the pool; just lower the water level below the tear or use an underwater kit. Clean the area, cut a round or oval patch, apply adhesive to both patch and liner, press firmly for a minute, and wait 24 hours. If the tear is over six inches or near a seam, call a pro.