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 Check My Work PLease *work done, pics added*
Author: Don411 (IN)

Thanks to the pros for the help on this bath vent, this is what I wound up with, let me know if something not OK.





Edited 1 times.

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 Re: Check My Work PLease
Author: steve (CA)

The drain for the hall bath can not drop down as shown on your drawing. You create an S trap. Vent the hall bath separately and tie it into the new vent pipe.




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 Re: Check My Work PLease
Author: sum (FL)

one option is to just rough in the hall bath drain inlet lower, and minimize that my using a sanitary tee with a street/spigot connection at the bottom for the master bath sink and the hall bath santee goes right below that.

another option if both needs to be at the same height could use a figure 5 double fixture fitting but that drain needs to be in between the two.

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 Re: Check My Work PLease
Author: packy (MA)

2 out of 3 of these drawings are correct. guess which one is not ? hope you can take some kidding...
follow either of the other drawings. whichever is easier for your drilling etc.

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 Thanks guys clap
Author: Don411 (IN)

Thanks guys. I know I posted this on another thread but after additional measuring I had the location of the sinks wrong and needed to reconfigure,.



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 Re: favorite saying
Author: packy (MA)

don, one of my favorite sayings is "there are no stupid questions, only stupid answers. "



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 Re: Thanks guys
Author: sum (FL)

Must be a big obstacle in the attic for the vent to do such a detour back and forth.



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 Re: My work
Author: Don411 (IN)

Yes, I am moving the wall 1', and it wound up directly under a ceiling joist, so there is no way to get a 2" vent pipe up inside the wall with complete drilling through the joist vertically. Likewise, I also moved the other wall 1' and the joist bay directly below is boxed in as an HVAC return, so I can't go down for a drain on that wall. I'll post some pics in a bit when I get them to upload.



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 Re: My work *pics added*
Author: Don411 (IN)

Here are a few pics of where I'm at with this project. The original wall that divides the master bath from the hall bath has the drain for the master bath lav and also vents the master bath toilet. We are moving the wall that separates the bedroom from both bathroom 1' into the bedroom and the wall that separates the bathroom 1' into the hall bath to make more room in the master bath. We have been joking that the architect who drew this floorplan may have won an award for designing the world's smallest master bath....

In this pic you can see the existing master bath plumbing in the background and the new plumbing in the new framing. Once this bath is completed and functional, the master bath will be gutted and the old wall removed, with the new wall being the new common wall between the baths. I added an AAV to serve as a temporary vent until the master bath is completed.



Here was the issue with the vent, the new wall fell right under a ceiling joist, you can't see it in this pic the second horizontal 2x4 is a nailer for the ceiling.





Original vent coming up through the old wall



You can barely see the new master bath sink drain at the back of this pic:



Here is the view from below, you can see the existing master bath toilet and where the vent ties in, as well as the new drain coming down through the floor.



The plan is to tie the new drain for both sinks into the master bath toilet with a wye closer back to where it connects to the stack. Then when I do the master bath, I can cut and cap that line just before the current vent and the hall bath sink with still be functional during the remodel. The other line is the hall bath toilet which is getting relocated closer to the stack.

The trap in the background is the ,aster bath shower that drains directly into the stack with no separate vent, hall bath tub was connected similarly as was hall bath toilet. Is there a rule that says if a fixture drains into the main stack and no other fixtures share that drain that it doesn't need a separate vent?



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 Re: My work *pics added*
Author: packy (MA)

the shower is stack vented. it is legal as long as it enters the stack higher than the toilet does. get up and look closely at that side inlet sanitary tee. the center of the shower inlet is about 1/4 inch higher than the center of the toilet inlet. tricky aren't the but it is higher. the rest of the job looks fine. actually the 3 x 2 san tee that vents the toilet should by code be a 'Y' but don't worry about it, it will work fine. good work..

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 Re: My work *pics added*
Author: Don411 (IN)

Thanks Packy! That san tee in the toilet line is for the existing master bath sink/vent and will be replaced with a wye when I tie in the new sink drains. I appreciate the help, this project has been a challenge. I told my wife that plumbing is way more complex than people think, and it takes time to understand the rules and make sure the job is done right. Then 3 years later when I do the next bathroom I've forgotten everything I learned from the last project....

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 Re: My work *pics added*
Author: packy (MA)

some of us older plumbers joke that if we took the plumbing exam now, they would take our license away.

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