Tom Scherer, NDSU Extension agricultural engineer, shows how to measure the depth of sludge in a septic tank. (NDSU photo)
Tom Scherer, NDSU Extension agricultural engineer, shows how to measure the depth of sludge in a septic tank. (NDSU photo)https://www.ag.ndsu.edu/news/newsreleases/2015/oct-5-2015/pump-your-septic-tank-before-winter/tom-scherer-ndsu-extension-agricultural-engineer-shows-how-to-me/viewhttps://www.ag.ndsu.edu/news/newsreleases/2015/oct-5-2015/pump-your-septic-tank-before-winter/tom-scherer-ndsu-extension-agricultural-engineer-shows-how-to-me/@@download/image/2015-10-08.8754611727
Tom Scherer, NDSU Extension agricultural engineer, shows how to measure the depth of sludge in a septic tank. (NDSU photo)