Termination of water heater TP relief line

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Copymutt

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Just installed a timer on this 6 gal. elec. water heater. Desiring to comply w/ code for termination of the PT relief pipe. Code says no more than 6” above or below structural floor. Other heaters in the home are terminated to outside structure 6” above ground because it was convenient. Since this is rework, that’s not very convenient.
Your suggestions please. Note the shop sink is right there, very convenient.
C7404FD6-7810-4329-B002-081A27883E2E.jpegC7404FD6-7810-4329-B002-081A27883E2E.jpeg
 

frodo

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1] your relief valve
Discharge in a manner that does not cause personal injury
Code requires it to discharge through a ''air gap'' that means the bottom of the pipe shall be 1'' above the rim of that sink.



2]water_heater_bottom_fed.png

1584551848930.png
 
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SHEPLMBR

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1] your relief valve
Discharge in a manner that does not cause personal injury
Code requires it to discharge through a ''air gap'' that means the bottom of the pipe shall be 1'' above the rim of that sink.



2]View attachment 23787

View attachment 23788
ha! I have seen them (albeit not code) discharging into a non-used water fountain.
 

frodo

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Please explain the function of the vacuum relief valve. Thanks.
Vacuum Relief Valve
Featured snippet from the web
Vacuum relief valves are used in water heater/tank applications to automatically allow air to enter into the piping system to prevent vacuum conditions that could siphon the water from the system and damage water heater/tank equipment.



This is how I would pipe your WH
 

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Copymutt

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Thanks for all the input guys. I can’t perceive a vac relief needed unless there was a potential for siphoning via the PR termination, which I don’t intend to create. Terminating 1” above the sink would look like crap and interfere w/ the use of said sink, besides being a potential burn hazard. Other than just terminating inside above the floor, I see my only other option as running it down the inside wall and then outside to dump. There is no way you would not realize the PR valve has opened, however I’ve observed some pretty clueless people.
 
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