Trap weird and crown weir

[David Pant]

Originally Posted by rsmith24

Where are you getting that quote from? I copied and pasted from the Residential Plumbing Overview for Inspectors

I got it from "25 Standards Every Inspector Should Know"

"Standard #14: Standpipes"

The first line is "Standpipes should extend at least 18 inches and no more than 42 inches above the trap weir. The standpipe should be at least 30 inches high measured from the crown weir. "

Dave

[ggal]

Originally Posted by dpant

I got it from "

Originally Posted by dpant

25 Standards Every Inspector Should Know"

"Standard #14: Standpipes"

The first line is "Standpipes should extend at least 18 inches and no more than 42 inches above the trap weir. The standpipe should be at least 30 inches high measured from the crown weir. "

Dave

Hi Dave

I am confused by the contradiction just like you are.
Maybe there is an error in the page of that particular page of "25 Standards Every Inspector Should Know" and the answer is in Robert Smoth’s quote “The horizontal distance should not exceed 30 inches (610 mm), as measured from the center line of the fixture outlet to the center line of the inlet of the trap. The horizontal distance from a fixture to the trap limits the amount of bacterial growth and odor. It is desirable to locate the trap as close to the fixture as possible. A fixture should not be double-trapped.”

So the 30" really refers to another part in the system.

Gabe

[ggal]

I found the following
"The horizontal distance from the fixture outlet to the trap weir should not be greater than 30 inches, measured from the centerline of the fixture outlet to the centerline of the inlet of the trap"
on this page
http://education.nachi.org/show.php?...6&course_id=54

Obviusly the contradiction mentioned earlier, is an error.

Gabe

[ROBERT V. YOUNG]

Is that the lateral exit line Mr.OKeefe?
I see all kinds of problems with it.
I could be worng.

[David P. OKeefe]

Originally Posted by ryoung7

Is that the lateral exit line Mr.OKeefe?
I see all kinds of problems with it.
I could be worng.

That is the main sewer line.

[ROBERT V. YOUNG]

That is what I though.
Would not pass my report with out a writeup.
Please excuse me but I am brushing up on my technical language.
The setup is all wrong for that type of entrance.
It should have a fume vapor trap on it. That Y mount and p rap are to large and are not meat for the install of a 1.25 or 1.5 inch washer discharge on it.
Plus to mount the right fittings and all the down sizing, the right height of the piping would strain your washer and might not pump the water high enough.
I have sen this before ( not exactly ) and they discharged into the sump basin and the pumped it into the main.
All the lint caused big problems.
There was not back water valve and the lint entered the sump basin.
The basin was a weeping style and the lint blocked all the holes.
Stopping ground water from being exited out the drainage system..
Now back to your problem.
The 45 is for branching.
Also having your main sewer line running in the air like that is wrong.Any hangers every 10 feet holding it in the air?
Did you measure it for rise and run ?. I think its 1/4 inch per 10 foot.
Is there a sump pit and basin ? Where does it discharge into ? if there is one.
You should look to Marcel Cyr.
I am tired and my mind wonders more than most peoples when tired.
I will try first thing in the morning if no one is helpful.
Hope that helped.
Please do not take my word and ask MR.CYR.

[ROBERT V. YOUNG]

Originally Posted by dokeefe

That is the main sewer line.

Mr.OKeefe.
I am sorry about the post.
I had to come back I again noticed something wrong with photos.
My graphic drivers in the new computer are giving me a hard time.
I see problems with the tape and the size of the 45 brach is to big.( my opinion.)
That,s all I can honestly say for now.
I have reset my drivers and seem to be having my photos cut.
The optical imaging is distorted.
Again I say call Marcel Cyr.
Man I can not wait to get my my build out of the shop.
Sorry. I will stay off this board unless I only use my laptop.
Thanks ..Robert.

[ROBERT V. YOUNG]

Link.

http://www.askmehelpdesk.com/plumbin...ed-405690.html

Hope it helps.