Thread: Definition of "Trap Height"

P2706.2 Standpipes for automatic clothes washers shall extend a minimum of 30 inches (762 mm) and a maximum of 48 inches (1219 mm) above the finished floor. The trap for a clothes washer shall be installed at a maximum of 12 inches (305 mm) above the finished floor. Access shall be provided to all standpipe traps and drains for rodding.

Trap height is measured at the trap weir, correct?

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Originally Posted by Michael Thomas

P2706.2 Standpipes for automatic clothes washers shall extend a minimum of 30 inches (762 mm) and a maximum of 48 inches (1219 mm) above the finished floor. The trap for a clothes washer shall be installed at a maximum of 12 inches (305 mm) above the finished floor. Access shall be provided to all standpipe traps and drains for rodding.

Trap height is measured at the trap weir, correct?

What code is that out of?

From the 2003 IRC.

- P2706.2 Standpipes.

Standpipes shall extend a minimum of 18 inches (457 mm) and a maximum of 42 inches (1067 mm) above the trap weir. Access shall be provided to all standpipe traps and drains for rodding.

From the 2006 IRC.

- P2706.2 Standpipes.

Standpipes shall extend a minimum of 18 inches (457 mm) and a maximum of 42 inches (1067 mm) above the trap weir. Access shall be provided to all standpipe traps and drains for rodding.

Originally Posted by Jerry Peck

What code is that out of?

From the 2003 IRC.

- P2706.2 Standpipes.

Standpipes shall extend a minimum of 18 inches (457 mm) and a maximum of 42 inches (1067 mm) above the trap weir. Access shall be provided to all standpipe traps and drains for rodding.

From the 2006 IRC.

- P2706.2 Standpipes.

Standpipes shall extend a minimum of 18 inches (457 mm) and a maximum of 42 inches (1067 mm) above the trap weir. Access shall be provided to all standpipe traps and drains for rodding.

JP: Chapter 27 - Flahdah Building Code.

So, is the "trap height" with "weir height"?

Originally Posted by Michael Thomas

So, is the "trap height" with "weir height"?

Michael: It appears to be.

Originally Posted by A.D. Miller

JP: Chapter 27 - Flahdah Building Code.

Ahhrin,

Nope.

This is from the Flahdah Booldin Coed:

- P2706.2 Standpipes.
- - Standpipes shall extend a minimum of 18 inches (457 mm) and a maximum of 42 inches (1067 mm) above the trap weir. Access shall be provided to all standpipe traps and drains for rodding.

Originally Posted by Jerry Peck

Ahhrin,

Nope.

This is from the Flahdah Booldin Coed:

- P2706.2 Standpipes.
- - Standpipes shall extend a minimum of 18 inches (457 mm) and a maximum of 42 inches (1067 mm) above the trap weir. Access shall be provided to all standpipe traps and drains for rodding.

JP: Please note that, in my first post, I directed Michael to the proper citation - to wit, the one you now quote.

Also note that, in my second post, I acted entirely out of memesis after experiencing your sapient illustrations over thousands of posts by artfully stating that "it appears to be", and not "it is so". My intent was to inveigle you into your current response. Or, I was just wrong. You decide . . .

Aaron,

Youse gotsta youse simple words fer dis small town boy.

Eyes gotsta lookie some o' dem words up.

Originally Posted by Michael Thomas

So, is the "trap height" with "weir height"?

Yes.

The rest of the trap would be the 'trap depth', which is not the same as the 'trap seal' depth. The 'trap seal' is the critical depth and is required to be 2" minimum and 4" maximum.

Jerry,

I've gone back into my notes, and truth is, I don't know where that cite is form, it pre-dates the time when I started to note the source on each entry and the only place I can find something similar via GOGGLE is www.kcmo.org/codes/CH18/2003/CH18ART3.pdf - my guess is that it's from my early days, and I assumed that the requirement of some local municipality I encoutered was unadulterated IRC.

Originally Posted by Jerry Peck

Aaron,

Youse gotsta youse simple words fer dis small town boy.

Eyes gotsta lookie some o' dem words up.

JP: Self deprecation does not become someone of your accomplishments.

Michael, Kentucky requires washer p-trap to be 12" from trap weir to floor. So it may be in the local plumbing code???

Originally Posted by Jerry Peck

Aaron,

Youse gotsta youse simple words fer dis small town boy.

Eyes gotsta lookie some o' dem words up.

Originally Posted by A.D. Miller

JP: Self deprecation does not become someone of your accomplishments.

Aaron,

That's not, that's being truthful.

You use big words like that and I have to look them up.

Which means you got to keep them simple ...

Well, okay, not simple like in 'See Dick. See Jane. See Spot. See Spot run. See Dick and Jane run after Spot.' ...

... But like "Also note that, in my second post, I acted entirely out of memesis after experiencing your sapient illustrations over thousands of posts by artfully stating that "it appears to be", and not "it is so". My intent was to inveigle you into your current response."

Huh??

That's not, that's being truthful.

JP: I'm always (almost) being truthful.

You use big words like that and I have to look them up.

JP: Turn about for my having to research your often obscure code references, or having to follow your over-the-top and unabashededly intricate lines of "reasoning".

Which means you got to keep them simple ...

JP: You too. But then, if simple means inaccurate, maybe not.

Originally Posted by Jerry Peck

That's not, that's being truthful.

Originally Posted by A.D. Miller

JP: I'm always (almost) being truthful.

I was not referring to you as not being truthful, I was referring to me, that I was not whatever-you-said, I was being truthful.

After reading your reply I went back and re-read what I posted, I can see where my meaning was not clear.

Sorry about that.

JP: Turn about for my having to research your often obscure code references, or having to follow your over-the-top and unabashededly intricate lines of "reasoning".

Whoooosh! (right over my head)

Got it now though.

Whoooosh! (right over my head)

JP: Never stop yanking chains, do you?

Originally Posted by Jerry Peck

Whoooosh! (right over my head)

Got it now though.

Originally Posted by A.D. Miller

JP: Never stop yanking chains, do you?

Aaron,

Why, did you have to look up what "Whoooosh!" meant?

Originally Posted by Jerry Peck

Aaron,

Why, did you have to look up what "Whoooosh!" meant?

JP: And, you are ever the one with the apropos Parthian shot. The next "whoooooosh" you here will be your fingers walking through Webster's . . .

Thanks for answering my question.

You may now each walk 10 paces, turn, and fire on my count of three...

Originally Posted by Michael Thomas

and fire on my count of three...

What if he can rub his sticks together faster than I can? No fair.

Hi Mr. Thomas,
Illinois plumbing code (Title 77: Public Health, 890 Illinois Plumbing Code), page A22, does not show a term "trap height" but it does refer to the trap seal, as shown in your diagram.
The dfinition refers to an illustration in Section 890.Appendix B, Illustration W.