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P2804. 6. 1 Requirements for discharge pipe - ICC Digital Codes Discharge through an air gap located in the same room as the water heater 3 Not be smaller than the diameter of the outlet of the valve served and shall discharge full size to the air gap 4 Serve a single relief device and shall not connect to piping serving any other relief device or equipment 5
What are the code requirements for the discharge piping from a . . . 1) The discharge pipe cannot be directly connected to the home’s plumbing drainage system, but an air gap located in the same room as the water heater can used to connect to the drainage system An air gap eliminates the possibility of backflow from the drain into the discharge piping
Water Heater air gap, below T P valve - HomeOwnersHub Whether it goes into the pan first or directly on the floor would not matter much The six inches is intended to ensure that the heater be vented as rapidly and safely as possible, and also to minimize any possibility that the water in the heater could ever be contaminated by drain or ground water
TPR Valves and Discharge Piping - InterNACHI The valve should be connected to a discharge pipe (also called a drain line) that runs down the length of the water heater tank This pipe is responsible for routing hot water released from the TPR to a proper discharge location
TPR Discharge Piping Regulations – InterNACHI Inspection Narrative Library Must discharge through an air gap located in the same room as the water heater ; Although what is acceptable can vary by jurisdiction, the following materials are listed in the 2015 International Plumbing Code as being acceptable for TPR discharge pipe: Notes: PVC is not acceptable
Water heater T P Pan Drain Hookup : r Plumbing - Reddit The only negative I’ve seen with direct piping the TNP valve into the drain is if it opens, you may not know and it will just continuously drip run, until your bills skyrocket, or septic needs more frequent pumping
Water Heater TPR Discharge Pipe - El Cerrito, California Discharge from a relief valve into a water heater pan shall be prohibited This document is meant to offer perspective and does not imply to be an exhaustive code evaluation or a prescriptive repair to your property