606.2 Fullway Valve.

606.2 Fullway Valve. A fullway valve controlling outlets shall be installed on the discharge side of each water meter and each unmetered water supply as near as possible to the point after where the water supply enters the building and before the first fitting or branch line. Water piping supplying more than one building on one premise shall be equipped with a separate fullway valve to each building, so arranged that the water supply can be turned on or off to any individual or separate building provided; however, that supply piping to a single-family residence and building accessory thereto shall be permitted to be controlled by one valve. Such shutoff valves shall be accessible. A fullway valve shall be installed on the discharge piping from water supply tanks at or near the tank. A fullway valve shall be installed on the cold water supply pipe to each water heater at or near the water heater. In cases where one water heater or boiler supplies hot water to multiple units additional fullway valves will be installed so that the hot water supplies to any apartment / unit / dwelling or condominium can be shut off without interrupting the hot water supply to any other apartment / unit / dwelling or condominium. These valves shall be accessible in the dwelling unit they control or other common area within the building.