Fats, Oils, and Grease (FOG), non-dispersible materials (e.g. diapers & wipes) and solid food waste, blocking sewer pipes are a serious maintenance problem for both the District and private property owners. When grease washes down the sink, it sticks to the insides of sewer pipes. The build-up restricts flow and by its self or in combination with other materials can block pipes completely, causing raw sewage to back up into your home or overflow into streets and streams, potentially jeopardizing the public health and the environment. These sanitary sewer overflows (SSO’s) are a violation of the Clean Water Act. In addition, flushing FOG, non-dispersible materials such as rags, hair, latex, personal hygiene products, cleaning wipes, and solid food waste may inhibit the proper functioning of pump stations and the Wastewater Treatment Plant.
Home garbage disposals do not keep grease out of sewer pipes. The combination of grease and solid food waste from garbage disposal and non-dispersible material contribute to blockages in the sewer system. Products that claim to dissolve grease may dislodge a blockage, or temporarily change the form of grease allowing the grease to move further down the sewer line before re-congealing and forming blockages.