Thank you in advance for you knowledge. Be assured if ever you need electrical advice I will be more then happy to supply you with that. (Master Electrician)
On to the question;
My friend here is renovating his attic to an office. He wants a bathroom in this space as well. Sink, toilet, and shower. There is a 4 inch cast waste stack that I know I will tap into, this stack is in the same bay as the toilets location and about 5ft away. The shower on the other hand is about 6-7 feet away. Now at a ¼ inch drop per foot the 2 inch line that needs to be added along with a trap brings the drainage pipe for the shower up out of the dimensions of the floor. Vertical space is critical for head room and drilling out the 2x6 ceiling joists and ruining their integrity scares the life out of me. My question is, Is there a way to add this shower with out either adding dimensional height to the floor and or cutting into the living space ceiling below.
Please see pictures below.
Red is toilet location
Green is sink location
Blue is shower location.
Thank you again.
I hope the photo link works here. I posted the photo as a profile photo in yahoo.
Sorry! Facebook won't let me log in to see.
To Send Attachments
Make your post and scroll down to Manage Attachments click on that and then click Browse This will allow you to get into your computer and retrieve your picture and upload it to The Plumbing Page. Try attaching the drawing. Cheers, Tom
OK! Has a permit been pulled and will this job be inspected? Are wet vents allowed in your area? What's venting the toilet. I see a "P" trap at the base of the stack. What would that be picking up? Regards, Tom
No permits are being pulled. This is an off the radar job. But I still want it right. Just like anything else in life, when you don't have the money ... you just don't. That is why I am helping a friend.
As for wet venting I do not know.
The base of the stack, in the crawl ( I am asuming that you are talking about the area just above " to street under ground" that goes to a 1st floor toilet.
The first floor toilet and the upstairs shower are wet vented by the lavatory vent.
Why is the upstairs toilet on a dedicated drain and why isn't it vented? Cheers, Tom
The light blue is what i intend to run. But b4 i do i wanted to ask you guys if this is acceptable. i thought as i was tying into the pvc in the crawl the existing stack would act as vent. If i need to vent the new 2nd floor toilet how would i go about venting that?
i thought as i was tying into the pvc in the crawl the existing stack would act as vent.
The distance is too great for the blue line to vent the upstairs toilet. In place of the downturned elbo ,( in red)I would install a 4" combination wye and eighth bend and bush the top of the combo down to two inches. Then run 2" PVC up and elbo overto a inverted 2" sanitary tee in the exixting VTR at least 6" over the top of the lavatory flood rim. Good luck, Tom
In the attic you will take off the stack with a 3" sanitary tee to pick up the entire bath. Run that 3" directly to the toilet and end with toilet elbow. In between, install a 3"x2" WYE fitting to pick up the lavatory and the shower. The lavatory waste and vent are increased to 2" and act as a WET VENT for the shower and the toilet. Penetrate the roof with 3" vent up to 18-24" if snows in your area, or less if no snow...
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