Our potable or “clean” water flows under water pressure through water lines to homes and businesses. Backflow is the reverse flow of what we call dirty water through these typically clean water lines. Dirty water is typically contaminated with feces, pesticides, chemicals, fertilizer and other hazardous materials, and can create a serious health hazard. Backflow can occur at cross-connections between potable and non-potable water in any residential, commercial or industrial water system.
Most municipalities will require the installation of a backflow prevention device at each cross-connection point found within the plumbing systems of apartments, condominiums, food establishments, and in most of our public and commercial areas. The type of backflow preventer needed will be consistent with the amount of hazard present on the premises.