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Old 12-04-2015, 10:46 PM   #16
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Could I run the utility sink drain into the stand pipes 2 inch horizontal run into the 3 inch vertical drain? The stand pipe and utility sink could then share the vent?
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Old 12-05-2015, 08:02 AM   #17
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Updated the pic with what I'd like to do...

Red is the 2" standpipe and drain (trap not shown) going into the 3" vertical drain line with a tee then the clean out on top of it.

The blue line is a 1.5" vent (with a backwards wye) going up past the standpipe height, and into the 1.5" vertical vent with a tee.

The green is the existing 1.5" utility drain line that attaches to the 1.5" vent line, and will just reuse it.

A bit less complex than trying to tie the utility drain into the standpipe drain and into the 3" stack. Hopefully this will be acceptable.
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Old 12-05-2015, 11:25 AM   #18
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Two tee connections the stand pipe a three inch by 2 tee the Sink a 2 by 1.5 by 1.5 inch tee.

Also two traps, a 2 inch trap on the stand pipe a 1.5 inch trap on the sink..

Just place the three by 2 tee low bush the top to 2 inch then place the second tee the vent is 1.5 inch.

What your doing is called a common vent.
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Old 12-05-2015, 06:24 PM   #19
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Just finished the supply run. Ended up at Lowe's and I picked up two current no hub connectors. One had a band that was corrugated the other "heavy duty" version was smooth all the way around. This is for connecting the 3" line to the cast iron pipe coming out of the foundation. Is one a better choice than the other?
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Old 12-05-2015, 07:34 PM   #20
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The smooth one should have PL to CI on the label. It would be the proper band
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Old 12-05-2015, 09:15 PM   #21
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Getting closer, going to lay out all the piping tonight and maybe glue up a few of the pieces.

Going against the wall maybe a bit tough due to clearance issues. I'm using a 45 and it may hit up against the foundation wall. May need to chisel out a quarter inch to fit, or try a different angled elbow.
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Old 12-05-2015, 09:16 PM   #22
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The pics
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Adding standpipe to double utility sink.-1449371766480.jpg   Adding standpipe to double utility sink.-1449371776479.jpg  
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Old 12-05-2015, 10:33 PM   #23
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You have to run 3 inch bro if you have 2 things draining into it. Not 2 inch.
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Old 12-05-2015, 10:52 PM   #24
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Quote:
Originally Posted by Ghostmaker View Post
You have to run 3 inch bro if you have 2 things draining into it. Not 2 inch.
I'm keeping the utility sink as is, only adding the 2" standpipe which will drain into the 3 inch vertical drain. Will tap into the 1.5" vent for the standpipe though.
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Old 12-06-2015, 11:29 AM   #25
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OK... You also need to reinstall a 3 " cleanout tee above your stuff.
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Old 12-06-2015, 03:11 PM   #26
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Work so far, letting everything set up then going to add some straps for support.

Not sure if the glue is taking a bit to setup, but the left most horizontal joint moves a bit. Hope I don't have to redo all that work.
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Adding standpipe to double utility sink.-1449436258364.jpg   Adding standpipe to double utility sink.-1449436276478.jpg   Adding standpipe to double utility sink.-1449436302319.jpg  
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Old 12-06-2015, 07:26 PM   #27
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Looks mighty fine... Strap it up and let it dry Your tees upside down on the vent though. It will work though
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Old 12-06-2015, 09:24 PM   #28
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First off, thanks so much for all your advice Ghost!

The cement set up and all is well, besides the one tee that is. Still need to strap the top of the stand pipe and install the utility sink. May also relocate the washer's electrical outlet since it seems way too close to the standpipe.
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Old 12-07-2015, 12:17 PM   #29
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Would we not want to flip that top vent tee the other way. I am sure it will work that way but looks funny.
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Old 12-07-2015, 06:19 PM   #30
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It's legal the tee but plumbers will laugh at you....

Make sure you fasten your washer hose with tie wraps so it doesn't blow out by accident.

Last edited by Ghostmaker; 12-07-2015 at 06:22 PM.
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