// CODE SNIPPET
Section P-804 Cross Connections
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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.
Related Code Sections
Section P-804 Water Supply and Distribution, Cross Connections
No cross connection shall be permitted between a potable water supply system and
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Cross connections shall be prohibited, except where approved backflow prevention assemblies, backflow prevention devices or other means or methods ...
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Cross connection of two supply tanks, not exceeding 660 gallons (2498 L) aggregate capacity, with gravity flow from one tank to another, shall ...
2018 Philadelphia Residential Code > 22 Special Piping and Storage Systems > M2203 Installation > M2203.6 Cross Connection of Tanks
P-804.5.1 Water Supply and Distribution, Installation
Cross connection control devices shall be installed, tested and maintained by persons
certified in accordance with the requirements of the City ...
Philadelphia Plumbing Code > 8 Water Supply and Distribution > P-804 Cross Connections > P-804.5 Backflow Prevention > P-804.5.1 Installation
P-804.5.2 Water Supply and Distribution, Permits
A plumbing permit shall be required for the installation of cross connection control devices ...
Philadelphia Plumbing Code > 8 Water Supply and Distribution > P-804 Cross Connections > P-804.5 Backflow Prevention > P-804.5.2 Permits