Polymer used during pond construction has resulted in my best results so far the few times I've had the opportunity to use it during construction/pond liner repair. If you experience suspect material during excavation [sand, gravel, shale, rock, low plasticity or sandy/rocky clay] polymer can be applied directly to the pond basin and sidewalls to help ensure a seal. I've also used it as a spot treatment over gravel veins and compacted 6" lifts of high plasticity clay over those areas. In a pond losing 3"+ daily for 18 months I was amazed it sealed like a drum after a quick spot treatment. I'll never build a pond again without have a pallet of polymer on hand as an insurance policy - will save tens of thousands in irrigation and repairs down the road. I tend to learn my lessons the hard way, but once they're learned, I don't forget!

Many men go fishing all of their lives without knowing that it is not fish they are after. ~ Henry David Thoreau

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