I have a .10 acre pond that was leaking 2 1/8 inches a day. There was also visible water on the backside of the dam. I pump water from a seasonal creek so i filled the pond a few times to confirm the vertical water loss. I contacted TJ and he spent a lot of time going over my options and we decided to try one unit mostly along the dam, its a long c shaped dam on the side of a hill mostly caliche soil. The second day after soilfloc application the visible water flowing behind the dam stopped. In about 5 days the vertical water loss was down to 5/8 inches per day, which if you know what my part of the country looks like, is very good. This pond started out as just a source for road base for our driveway. Thanks to TJ for his time and help and the old-fashioned way of doing business.