I have a 3/4 acre pond approximately 13 feet deep and its leaking a couple inches a day. This happen a while back and we discovered a hole about the size of a tennis ball in the bottom. It leaks into what my neighbor thought was a spring but it's lake water. I had an excavator contractor dig, chase and recompact the hole about a year ago. It held just fine and now it's leaking through the same hole system again because the spring on my neighbors property just started running again. With a hole the size of a tennis ball would soilfloc be a possible solution? I don't want to have to drain to repair again. Thoughts????
