Can black tank left open for years on seasonal RV be cleaned?

By Chris Dougherty Editor’s note: Chris Dougherty is a certified RV technician. Here is a letter he received from a reader while he was serving as’s technical editor. Dear Chris, I just purchased a 2010 36-foot Forest River Salem FLKB camp trailer. It’s been on the same site since it was purchased new, and the black and gray water tanks... Read More