LAC 51:XIV.509. Connections

A. A shutoff valve shall be provided in the cold water branch line to each water storage tank or each water heater, on the same floor within 3 feet of the heater. Full port ball valve shut-offs on cold water branch lines to 2 inches or full port ball or resilient wedge-type shut-off valves for 2 1/2-inch lines and larger shall be used. The valving shall not interfere or cause a disruption of the cold water supply to the remainder of the cold water system. B. The method of connecting a circulating water heater to the tank shall assure proper circulation of water through the heater, and permit a safe and useful temperature of water to be drawn from the tank. The pipe or tubes required for the installation of appliances which will draw from the water heater or storage tank shall be subject to the applicable provisions of this code for material and installation.