Most RV owners are unaware of the solid waste buildup that generates inside their holding tanks. Back flushing periodically helps eliminate some of this buildup. However,  both black and gray water tanks should be professionally serviced once a year. In this episode, Tina and Jeff Arnold from Kleen Tank of Eastern Florida gives us an in-depth description of the  tank cleaning process, and what RV owners are shocked to find after their holding tanks are professionally cleaned.