Glue as an Initial fix for Pond liner was not dependable. To avoid sides fray and peal up and the glue adhesion lose, there was no remedy. Spray has been proved terribly short term fix. Expandable foam gets water obtaining beneath to get back your leak. Pond Pro 2000 fortunate is in its natural process the product dries tiny bubbles can return to the surface ,what’s left is AN airtight vapor tight seal that the existing pool liner and also the PondPro2000 currently becomes one with the pond liner.PondPro2000 is backed by a five year unconditional product warrantee. In all Pond liners it’s the individual in its kind.