I had a contractor create the pond last year. From the day he left it has lost 300 gallons a day. He won't fix it, so I'm on my own.I need help/advice on how best to tackle this fix.Bottom line: When I turn the skimmer pump off, the water loss is significantly reduced, and possibly eliminated. So I'm assuming the loss is due to the water falling back into the soil under the waterfall.I have tried filling the cracks with a spray foam designed for filling cracks between the rocks - no luck.What can I do to fix this problem?The waterfall for the skimmer pump is on the left (turned off, for now). http://ift.tt/2t6bFnO via /r/DIY http://ift.tt/2tZZXaI
