This a first for me TPRV

[Wayne B. Wilson]

This is a first Tell me what is wrong here

[Jeffrey R. Pope]

The valve is not allowed to drain uphill. . .

[Wayne B. Wilson]

Yes then they connected to a 3/4 drain pipe with other tprv s from other condo.s Just one drain and i have no idea where it dumped.

[relliott]

Originally Posted by wwilson3

Yes then they connected to a 3/4 drain pipe with other tprv s from other condo.s Just one drain and i have no idea where it dumped.

Last part should not matter as they will not go off at the same time.

[Mark Nahrgang]

Originally Posted by relliott

Last part should not matter as they will not go off at the same time.

Yea but if one is leaking, how do you tell which one?

[Michael Larson]

Originally Posted by relliott

Last part should not matter as they will not go off at the same time.

That may sound right but its not.

[relliott]

Originally Posted by mlarson

That may sound right but its not.

I am comparing it to a breaker with electric heat baseboards and a window A/C unit on the same electrical branch.
(allowed)

Got a code? because I would not call it a hard write up when I am lucky to not see them dumping into a drain pan most of the time.

[Michael Larson]

504.6 Requirements for discharge piping.

The discharge
piping serving a pressure relief valve, temperature relief valve
or combination thereof 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 so as 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 such piping.

[relliott]

I figured that was the rule, but wonder why?

[Mark Nahrgang]

Originally Posted by relliott

I figured that was the rule, but wonder why?

Just a guess, but maybe because if one of them discharges you can't tell which one is failing?

[relliott]

Originally Posted by mnahrgang

Just a guess, but maybe because if one of them discharges you can't tell which one is failing?

That can be seen from the Hot water tank area.

How would you know other wise?

Not like there is an alarm at the bottom of the drain

[Jeffrey R. Jonas]

Originally Posted by relliott

Not like there is an alarm at the bottom of the drain

There could be... http://www.getfloodstop.com/category_s/2.htm

[Mark Nahrgang]

Originally Posted by relliott

That can be seen from the Hot water tank area.

Not if it's attached to another pipe you can't

How would you know other wise?

If it's one pipe, one discharge, one tank, it's pretty obvious which one is leaking. If multiple tanks are all attached to the same discharge pipe, you have to physically detach each one to determine where the leak is coming from.

Not like there is an alarm at the bottom of the drain

That is why they are supposed to discharge to an air gap so you can see the leak and deal with it.

[Wayne B. Wilson]

Well I wrote it up do to the fact is going down then up and connected to a drain no air gap
When like this Typicial Tprv should be in a down ward slope and have a air gap going to the drain to prevent back flow , Recommend a Licence Plumber to review to see if this meets local requirments.

[David A. Andersen]

they will not go off at the same time.

How do we know this?