Section P-804 Cross Connections

No cross connection shall be permitted between a potable water supply system and any other piping system.

No cross connection shall be permitted between the City water supply system and any other potable water system.

A cross connection is considered broken if a minimum air gap of two water supply pipe diameters is provided between the potable water and any other piping system; or between the City water and any other potable water system.

On existing water supply systems where it is impractical to provide the required minimum air gap, a swing-joint swivel device or a 4-way, 4-port valve of a design such that the distribution piping is fed by either water supply individually, but not simultaneously, shall be considered by the Department and the Department of Public Health for approval.

The City or other potable water supply line shall be protected from backflow by means of a backflow preventer installation of a type and location approved by the Department and the Department of Public Health.

Cross connection control devices shall be installed, tested and maintained by persons certified in accordance with the requirements of the City of Philadelphia.

A plumbing permit shall be required for the installation of cross connection control devices.