5 Steps to Fix a Pool Liner Leak Underwater

Find the leak with dye Turn off the pump and let the water settle. Squirt pool leak dye or food coloring near seams, fittings, or wrinkles. Watch for dye being pulled into a hole.

Clean the area thoroughly Use vinyl liner cleaner or rubbing alcohol to remove dirt and oils. A clean surface is essential for a strong bond.

Cut a patch that overlaps by at least an inch The patch must extend past the hole on all sides. Most underwater repair kits include a two-part epoxy or glue patch that cures underwater.

Press the patch on firmly and smooth out air bubbles Apply steady pressure and work out any trapped air. Leave the pump off for 24 hours to let the patch cure completely.

Know when to call a professional If the leak is at a seam or near a fitting, a patch may not hold long-term. A liner repair pro can replace just the damaged section instead of the whole liner.