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Re: combined tpr pipe on 2 heaters
Jerome,
Until the 2001 Florida Building Code took effect in 2002, this was the code for all of Florida outside Miami-Dade and Broward counties:
From the old Standard Plumbing Code (underlining is mine)
- P504.7.1 Discharge. The discharge from the relief valve shall be piped full-size separately to the outside of the building or to an indirect waste receptor located inside the building. In areas subject to freezing, the relief valve shall discharge through an air gap into an indirect waste receptor located within a heated space, or by other approved means. The discharge shall be installed in a manner that does not cause personal injury or property damage and that is readily observable by the building occupants. The discharge from a relief valve shall not be trapped. The diameter of the discharge piping shall not be less than the diameter of the relief valve outlet. The discharge pipe shall be installed so as to drain by gravity flow and shall terminate atmospherically not more than 6 inches (153 mm) above the floor. The end of the discharge pipe shall not be threaded.
Now it is this:
From the 2001 through 2004 Florida codes (Plumbing Code in 2001, FRC in 2004).
- P2803.6.1 Relief outlet waste.
- - The outlet of a pressure, temperature or other relief valve shall not be directly connected to the drainage system.
- - 2803.6.1.1 Discharge.
- - - The relief valve shall discharge full size to a safe place of disposal such as the floor, water heater pan, outside the building or an indirect waste receptor. The discharge pipe shall not have any trapped sections and shall have a visible air gap or air gap fitting located in the same room as the water heater. The discharge shall be installed in a manner that does not cause personal injury to occupants in the immediate area or structural damage to the building.
NOT allowed by either code.
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