an unprotected actual or potential connection between a potable water system and a source of contamination (such as waste water, industrial fluids, or pesticides), where backflow can occur from the source of contamination into the potable water system
an unprotected actual or potential connection between a potable water system used to supply water for drinking purposes and any source or system containing unapproved water or a substance that is not or cannot be approved as safe, wholesome, and potable
a permanent or temporary piping arrangement which can allow your drinking water to be contaminated if a backflow condition occurs
a physical arrangement between a drinking- water supply system and a nonpotable system whereby flow into the drinking water system is possible
A connection between two otherwise separate systems, one of which is potable water and the other waste, sewage or other source of contamination.
Any actual or potential connection between a drinking water system and an unapproved water supply or other source of contamination.
Interconnection between a potable water supply and a water supply intended for plant care which may contain fertilizer or other agricultural chemicals.
Any actual or potential connection between a drinking water supply and a possible source of contamination or pollution (e.g., a wastewater line).
A connection scheme between cabling runs, subsystems, and equipment using patch cords or jumpers that attach to connecting hardware on each end.
Any actual or potential connection between a potable water supply and any source of contamination or pollution.
A link or channel between pipes, wells, fixtures or tanks carrying contaminated water and those carrying potable (safe for drinking) water. Contaminated water, if at a higher pressure, enters the potable water system.
The inadvertent connection of a sewer service or private drainage system to the incorrect public sewer system. For example, a sanitary sewer service from a house that discharges to the storm sewer in the street rather than the sanitary sewer.
Any connection or situation that may allow wastewater to enter the supply system.