Island sink - Page 3 - Plumbing Zone

Herk · 07-16-2008, 07:33 PM

The UPC has, if I remember correctly, a special exemption for the island fixture, as long as it's plumbed as specified. (The picture above was a very good visualization of that.)

But the code that states that the vent must not go horizontal until it's above the flood level rim also states that if the pipe must be run below the flood level rim it will be of approved drainage materials.

GrumpyPlumber · 07-16-2008, 08:17 PM

Quote:

Originally Posted by 22rifle

I understand a combo for any vent connecting to a horizontal drain.

What I don't understand is a combo for a horizontal vent connecting to a vertical line. In fact, I think it's dead wrong.

A san-tee in the vertical position is definitely a drainage fitting just as a regular 90 is when used from horizontal flowing into a vertical pipe.

What am I missing guys?

Thats what I'm talkin' 'bout!

Makes NO sense!

WestCoastPlumber · 07-16-2008, 09:57 PM

I agree, makes no since. But the drawing has an arrow, and points tot he fitting, say's wye and showes the sweep of an 1/8th bend.

that to me is a comby, not a santee.

Maybe has too do with sweep, radius, or siphonage or something engineers would know about? something gravitational and
mathmatical?

GrumpyPlumber · 07-16-2008, 10:05 PM

Quote:

Originally Posted by WestCoastPlumber

I agree, makes no since. But the drawing has an arrow, and points tot he fitting, say's wye and showes the sweep of an 1/8th bend.

that to me is a comby, not a santee.

Maybe has too do with sweep, radius, or siphonage or something engineers would know about? something gravitational and
mathmatical?

To be sure we're on the same page, I was referring to the O/P's pic with the red dot on the horizontal representing the drain inlet...never seen any bow vent/island sink set up that way, I have to wonder if he didn't misinterperet the inspectors description or something.

WestCoastPlumber · 07-16-2008, 10:19 PM

Quote:

Originally Posted by GrumpyPlumber

To be sure we're on the same page, I was referring to the O/P's pic with the red dot on the horizontal representing the drain inlet...never seen any bow vent/island sink set up that way, I have to wonder if he didn't misinterperet the inspectors description or something.

Oh, but I think 22 is curious about the comby, so I am going to post the picture out of the UPC illustrated manuel

I will feel better

just as soon as my IT , gets it on (my wife)

WestCoastPlumber · 07-16-2008, 10:20 PM

scan0001.jpg

The code

there you go, hard to see, wife say's save it as a picture, then zoom it, but I bet you get the idea.

Killertoiletspider · 07-16-2008, 10:27 PM

A is legal in Chicago, B is not.

Plumberman · 07-16-2008, 10:41 PM

Same here....

WestCoastPlumber · 07-16-2008, 10:53 PM

Drain fittings below flood level rim only, and it is legal. vent fittings over floodlevel rim.

Cal · 07-18-2008, 09:10 PM

Still don't think the vent below the floor is legal in Va.

We use a lot of Studor AAV here . As long as they are accessible ,,, shouldn't be a problem .
Cal

07-16-2008, 09:57 PM	#23
WestCoastPlumber Plumber Manhattan Beach Join Date: Jun 2008 Location: Los Angeles (South Bay) Posts: 828 My Photos	I agree, makes no since. But the drawing has an arrow, and points tot he fitting, say's wye and showes the sweep of an 1/8th bend. that to me is a comby, not a santee. Maybe has too do with sweep, radius, or siphonage or something engineers would know about? something gravitational and mathmatical? __________________ Robert Plumber Manhattan Beach, Plumber Hermosa Beach,Plumber Marina Del Rey, Plumber Redondo Beach, Tankless water heaters Los Angeles Tankless repair Los Angeles

07-16-2008, 10:20 PM	#26
WestCoastPlumber Plumber Manhattan Beach Join Date: Jun 2008 Location: Los Angeles (South Bay) Posts: 828 My Photos	scan0001.jpg The code there you go, hard to see, wife say's save it as a picture, then zoom it, but I bet you get the idea. __________________ Robert Plumber Manhattan Beach, Plumber Hermosa Beach,Plumber Marina Del Rey, Plumber Redondo Beach, Tankless water heaters Los Angeles Tankless repair Los Angeles Last edited by WestCoastPlumber; 07-16-2008 at 10:24 PM..

07-16-2008, 10:53 PM	#29
WestCoastPlumber Plumber Manhattan Beach Join Date: Jun 2008 Location: Los Angeles (South Bay) Posts: 828 My Photos	Drain fittings below flood level rim only, and it is legal. vent fittings over floodlevel rim. __________________ Robert Plumber Manhattan Beach, Plumber Hermosa Beach,Plumber Marina Del Rey, Plumber Redondo Beach, Tankless water heaters Los Angeles Tankless repair Los Angeles

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07-16-2008, 07:33 PM	#21
Herk Senior Member Join Date: Jun 2008 Location: S.E. Idaho Posts: 800 My Photos	The UPC has, if I remember correctly, a special exemption for the island fixture, as long as it's plumbed as specified. (The picture above was a very good visualization of that.) But the code that states that the vent must not go horizontal until it's above the flood level rim also states that if the pipe must be run below the flood level rim it will be of approved drainage materials.

07-16-2008, 10:27 PM	#27
Killertoiletspider Senior Member Join Date: Jun 2008 Posts: 2,411 My Photos	A is legal in Chicago, B is not.

07-18-2008, 09:10 PM	#30
Cal Senior Member Join Date: Jun 2008 Location: Northern Virginia Posts: 1,407 My Photos	Still don't think the vent below the floor is legal in Va. We use a lot of Studor AAV here . As long as they are accessible ,,, shouldn't be a problem . Cal