I didn't spray any on the banks. I only applied it to the water and at the time of the application, my pond was full. I'm still seeing loss of water but I believe it is due to evaporation. I'm not seeing any more water seeping at the toe of the dam.
Yes, I used a 3 inch trash pump reduced down to 1.5 inches to apply the product. I'm thinking it would shoot a good 35 - 40 feet. I couldn't even imaging using a 3 inch discharge.
