And the TPR drain ends...

rmaday · July 12, 2008, 11:21pm

WH on 2nd floor.
TRP drain terminates above floor drain in pic 2.
In storage room in 1/2 bath downstairs.

jmckee · July 13, 2008, 1:48am

hhhhhmmmmmmmmmmmmmmmmm

jwilliams4 · July 13, 2008, 2:23am

What?..you don’t know the words???

jmckee · July 13, 2008, 2:29am

speechless i guess Jae…what do You think about that picture…???

dduffy · July 13, 2008, 2:32am

Looks good too me Rick--------

rmaday · July 13, 2008, 2:59am

Curious as to why they would run it all the way through the walls and down another floor when there is a floor drain in the room with the WH?

jgilleland · July 13, 2008, 5:09am

Because with the pressure from a TPR opening up and a grate on the Flr Drn, well Water Water everywhere.
Looks okay to me too.

rmaday · July 13, 2008, 5:30am

Thanks for the responses.

I guess my biggest concern is that they wouldn’t know (couldn’t see) if it was discharging.

Also, don’t know if it makes a difference but there was no grate on the upstaird Flr Drain.

rmaday · July 13, 2008, 6:06am

Bold is what concerns me

TPR mini-course:

The following recommendations regarding TPR discharge pipes are based largely on the 2006 International Residential Code P2803.61 as well as other building and plumbing codes.
The discharge piping serving a TPR valve should:

Be constructed of an approved material such as CPVC, copper, polyethylene, galvanized steel, polybutylene, polypropylene, or stainless steel.

Not be smaller than the diameter of the outlet of the valve it serves (usually no smaller than 3/4").

Shall not reduce in size from the valve to the air gap (point of discharge).

Be as short and as straight as possible so as to avoid undue stress on the valve.

Be installed so as to drain by flow of gravity.

Not be trapped since standing water may become contaminated and backflow into the potable water.

Discharge to the floor, to an indirect waste receptor, or to the outdoors.

Not be directly connected to the drainage system to prevent backflow of potentially contaminating the potable water.

Discharge through a visible air gap (atmosphere) in the same room as the water heater.

Be first piped to an indirect waste receptor through an air gap located in a heated area when discharging to the outdoors in areas subject to freezing, since freezing water could block the pipe.

Not terminate more than 6 inches (152 mm) above the floor or waste receptor.

Discharge in a manner that could not cause scalding.

Discharge in a manner that could not cause structural or property damage.

Discharge to a termination point that is readily observable by occupants because discharge indicates that something is wrong.

Be piped independent of other equipment drains, water heater pans, or relief valve discharge piping to the point of discharge.

Not have valves anywhere.

Not have tee fittings.

Not have a threaded connection at the end of the pipe so as to avoid capping.

dvalley · July 13, 2008, 10:33am

I see these type of PTR valve installations in Condos.

I simply explain to my clients, why I like to see the PTR termination and note that the PTR valve can not be monitored.

Definitely make a note about the elbows in the PTR extension pipes.

cbottger · July 13, 2008, 6:33pm

Rick yours is not as cute as mine this one terminated within the shower stall just in case one needed an extra boost of good hot water:D :shock: Multiple problems with this one installed by the local Drunk. Installed within an open area of the bathroom PVC on the relief valve into the shower stall, copper whip to the control valve no manual shut off at the appliance and single wall flue vent into the attic with no clearance to combustibles</IMG></IMG></IMG>

rray · July 14, 2008, 1:10am

4. Be as short and as straight as possible so as to avoid undue stress on the valve.
9. Discharge through a visible air gap (atmosphere) in the same room as the water heater.
14. Discharge to a termination point that is readily observable by occupants because discharge indicates that something is wrong.

I would love it if that were the case here, but most, if not all, manufacturers approve of 4-6 90° angles. I guess that’s “as straight as possible.”
Rarely in new construction do I see the pipe terminating in the same room as the water heater. They now route them outside, which I don’t like because of #14. Nonetheless, every AHJ in every city here approves of them being terminated outside.

jtribuzio · July 14, 2008, 1:59am

Typical condo weirdness…
At one of my recent condo inspections in a well known large chicago building ( that looks like a setr of corn cobbs), I found the small tank water heaters TPR discharge was a copper flex ( kinked too) that was routed up to disharge into the small ss kitchen sink through what looked like the soap dispenser spigot. Of course i called it out as extremely dangerous and amateurish installation. It appears that every unit in this massive building that was converted was done this way.

I alerted the city plumbing inspectors office. They were pretty shocked and glad i called.

ccurrins · July 14, 2008, 2:45am

I thought the plumbers union were the big boys up there.

badair · July 14, 2008, 2:57am

Send each and every one of them an INVOICE

Payable to:
ADAIR INSPECTION
1733 GOLIAD DRIVE
GARLAND, TX 75042-4238

:lol: :lol: :lol:

jgilleland · July 14, 2008, 3:11am

Rich,
Don’t like to see them outside the room with water heater, but you really can’t get anyone to change the stupid rule. Recently, had the fact that one similar to yours was in accordance with manufacturer’s rec. and the county and the state code. Now what I do is include reasons (As quoted from IRC) and mark it IMO. Sorry, condemnation still ringing in my ears. :twisted: :roll:

dandersen · July 14, 2008, 1:20pm

I think it should go into the kitty-litter box!

gromicko · July 14, 2008, 7:36pm

http://www.nachi.org/waterheaterdischargepipingcoursereleased2007.htm

rmaday · July 14, 2008, 7:38pm

rmaday:

Bold is what concerns me.

TPR mini-course:

The following recommendations regarding TPR discharge pipes are based largely on the 2006 International Residential Code P2803.61 as well as other building and plumbing codes.
The discharge piping serving a TPR valve should:

Be constructed of an approved material such as CPVC, copper, polyethylene, galvanized steel, polybutylene, polypropylene, or stainless steel.

Not be smaller than the diameter of the outlet of the valve it serves (usually no smaller than 3/4").

Shall not reduce in size from the valve to the air gap (point of discharge).

Be as short and as straight as possible so as to avoid undue stress on the valve.

Be installed so as to drain by flow of gravity.

Not be trapped since standing water may become contaminated and backflow into the potable water.

Discharge to the floor, to an indirect waste receptor, or to the outdoors.

Not be directly connected to the drainage system to prevent backflow of potentially contaminating the potable water.

Discharge through a visible air gap (atmosphere) in the same room as the water heater.

Be first piped to an indirect waste receptor through an air gap located in a heated area when discharging to the outdoors in areas subject to freezing, since freezing water could block the pipe.

Not terminate more than 6 inches (152 mm) above the floor or waste receptor.

Discharge in a manner that could not cause scalding.

Discharge in a manner that could not cause structural or property damage.

Discharge to a termination point that is readily observable by occupants because discharge indicates that something is wrong.

Be piped independent of other equipment drains, water heater pans, or relief valve discharge piping to the point of discharge.

Not have valves anywhere.

Not have tee fittings.

Not have a threaded connection at the end of the pipe so as to avoid capping.