TPR Tube

[sronk]

How about a TPR tube that goes down the tank OK, then hits the floor, then a 90 degree elbow and then about five five feet on the floor toward a drain, but not in the drain.

I was taught that it should be no more then six inches off floor, although I see that some say six to twenty four inches off the floor. How about on the floor for five feet.
How would you write up.

[Joe Funderburk, CMI]

Although unorthodox, I don't see a problem with it.

2006 IRC P2803.6.1 Requirements for discharge pipe. The discharge
piping serving a pressure-relief valve, temperaturerelief
valve or combination valve shall:
1. Not be directly connected to the drainage system.
2. 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. Discharge to the floor, to an indirect waste receptor
or to the outdoors. Where discharging to the outdoors
in areas subject to freezing, discharge piping
shall be first piped to an indirect waste receptor
through an air gap located in a conditioned area.
6. Discharge in a manner that does not cause personal
injury or structural damage.
7. Discharge to a termination point that is readily
observable by the building occupants.
8. Not be trapped.
9. Be installed to flow by gravity.
10. Not terminate more than 6 inches (152 mm) above
the floor or waste receptor.
11. Not have a threaded connection at the end of the piping.
12. Not have valves or tee fittings.
13. Be constructed of those materials listed in Section
P2904.5 or materials tested, rated and approved for
such use in accordance with ASME A112.4.1.

[dchew]

Common sense should prevail. Not to the letter of the code exactly, but the piping is safe and terminates next to an indirect drain.

[Joe Funderburk, CMI]

Originally Posted by dchew

...Not to the letter of the code exactly, but the piping is safe and terminates next to an indirect drain.

I don't see that it violates the code at all. (I'm assuming that it discharges to a concrete floor.)

[sronk]

Thanks for the help...

[lfoster]

Is the floor level at the discharge site lower than the floor level of the home -- such as garage and home appx. 3" difference?