Marlig Industries Seal 32oz Marlig Fix Pool and Spa Leak Sealer 32 oz-2 Pack Designed to fix leaks for Pools, Spas, & Hot Tubs in virtually any material Will permanently seal holes up to 1/8" in diameter Spa Dosage: 8 oz. per 1,000 gallons, Pool Dosage: 1 qt. per 22,000 gallons