Vents

charlesmd

Is there any way to vent a sink and a d/w in a peninsula w/o running
a line inside the wall, i.e. can it be run down into a basement ceiling and
then over to a wall and out to the roof(dedicated).I saw a loop vent pic
but is that allowed and is it effective(prone to problems)????
Its my kitchen, no permits.

KillerToiletSpider

We run island vents like that all the time.

__________________
A flush is better than a full house.

Ron The Plumber

Why is it most don't think a permit is needed, this should by all means be done with a permit.

Do yourself a favor, get your plumber to do this for you, and get a permit.

charlesmd

I know a permit is required, so dose my plumber-even if he did it, because
of my local he wouldnt draw one unless I requested it.(Hes good too).
Im just trying to save a buck or two. And whoever has that cat shootin
the machine gun-its a riot....

Ron The Plumber

Codes are going to vary from state to state, asking on here is asking for trouble, you really should be asking your plumber how it needs to be done, I'm sure he will help out.

Double-A

Another way to do this is with a continuous waste and vent. That was the only way to do this in Arkansas for the longest time. Now I think (I'd have to look) that a looped vent is allowed.

Having said all that, Ron is right. Check with your plumber. If he doesn't know, then check with your local AHJ. They will know. So what if you have to buy a permit.

You do realize that in some areas, folks are insisting on an OK from the inspections department before closing on a house. If they find there is work that was performed without a permit, that is reason to back out of the sale.

__________________
"My clients’ wishes are the center of my attention." -- David Guido, a contractor in Woodstock, N.Y.
New York Times, July 20, 2006

KillerToiletSpider

Very true on Ron's point, the way you do it in Arkansas would be illegal in Illinois, it would be considered a wet vent.

__________________
A flush is better than a full house.

Double-A

Yup, we were based on the old National Plumbing code for ages.

How do you vent floor drains? Do you come off at 67-12 degrees with a wye and up 4-6" before going horizontal again?

__________________
"My clients’ wishes are the center of my attention." -- David Guido, a contractor in Woodstock, N.Y.
New York Times, July 20, 2006

KillerToiletSpider

A floor drain on what floor?

If it is a subsoil drain within five feet of the stack, it needs no vent, but must have a four inch trap.

If it is a floor drain on any floor above subsoil, it has to be vented and tied in 6" above the spill of the tallest fixture on that stack, and has to be elevated above the horizontal waste by at least 11-1/4 degrees.

__________________
A flush is better than a full house.

Double-A

You're going to have to forgive me, Killer. I think mostly in terms of single story, or two story buildings as that is where most of my experience is.

I realize you work mostly on multi-floor structures. When I asked this, I wasn't thinking.

Floor drain, commercial environment, retail store, general merchandise, 25' from nearest wall, subsoil.

We could do this two ways here, continuous waste and vent or roll up 67-1/2 degrees and up to 6" over the top of the horizontal drain, then horizontal to the wall, and tied in no less than 6" above spill of highest fixture on that stack.

__________________
"My clients’ wishes are the center of my attention." -- David Guido, a contractor in Woodstock, N.Y.
New York Times, July 20, 2006

KillerToiletSpider

That would have to be individually vented, a horizontal tee rolled to a minimum of a 1/16th bend in line behind the trap. It can be rolled back to a bathroom vent and tied in 6" above spill, but usually we go to the closest wall and run it through the roof by itself.

__________________
A flush is better than a full house.