It has been about four and a half months since TJ helped me with a Soil-floc application on my 1 acre pond. I have not run my pump since that time and previously I was running it every week to 10 days. Since my application I am still only losing amounts about equal to the NOAA evaporation table listing for my area and the rains have made up for that. I could not be more satisfied, and yes CC my kids are also looking forward to skating on flat ice this year!