Section 408.30530. Requirements for discharge pipe.

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Section P2803.6.1 of the code is amended to read as follows:

P2803.6.1. Requirements for discharge pipe. Relief valves shall not discharge so as to be a hazard, a potential cause of damage, or a nuisance.

A relief valve discharge pipe shall be provided for each individual relief valve and shall meet all of the following:

(a) Shall terminate atmospherically not more than 4 inches (102 mm) from the floor with an unthreaded end.

(b)	Shall not be interconnected.
(c)	Valves shall not be connected in the relief valve discharge pipe.
(d)	Shall be rigid pipe approved for water distribution, with	a	minimum

temperature rating of 210 degrees Fahrenheit.

(e) Shall have the same nominal inside diameter as the relief valve outlet and shall drain by gravity flow.

(f) Shall discharge to the floor, or to the pan serving the water heater or storage tank, or to a waste receptor.

The outlet of a pressure, temperature, or other relief valve shall not be directly connected to the drainage system.

History: 2001 AACS; 2008 AACS; 2010 AACS.

                    
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