TPR - pipe run...question

[Bob Elliott]

Originally Posted by jpope

??

Even in CA, this is an improper installation, so I don't understand your post.

To clarify, the termination will generally be on the exterior in this type of set up, so (based on my experience) I'm assuming it's visible. The uphill slope on the discharge is improper, but I'm not aware of any restriction on the type of material that has been used.

Sorry I saw this late but I do not like the idea of piping a TPR valve to the outside where nobody will see it dripping when there is a bush in front of it ,may be clogged from some outside source and also in Chicago that would not be allowed so I said "well it is Calif" (not meant to be a bad rap"


The discharge from the relief valve shall be piped separately to an indirect waste receptor located inside the building. The discharge shall be piped full size and 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 (150 mm) above the floor. The end of the discharge pipe shall not be threaded.

[Jeffrey R. Pope]

Originally Posted by clambert2

the corrugated Copper line is rated at 3/4 inch yet is has a 5/8 inch diameter therefore restricting flow.

I thought that was the direction you were going (and I agree), but I was shot-down by my AHJ on this exact issue. The line/flow rating was the deciding factor for him.

I convinced two deputy inspectors to see it my way, but it ended when their boss (the Senior Code Enforcement Officer for my city) said it is allowed.

[clambert2]

Originally Posted by jpope

I thought that was the direction you were going (and I agree), but I was shot-down by my AHJ on this exact issue. The line/flow rating was the deciding factor for him.

I convinced two deputy inspectors to see it my way, but it ended when their boss (the Senior Code Enforcement Officer for my city) said it is allowed.

They have no liability...We do

It state in the code line must be full bore to the end no restrictions..That corrugated line is smaller bore and thus restricts.

[Jeffrey R. Pope]

You'll get no argument from me...

[clambert2]

Originally Posted by jpope

You'll get no argument from me...

Ohh I know.. It is just amazing how AHJ's make up their own rules as they go along