Plumbing: adding onto a horizontal toilet drain

Users who are viewing this thread

fordperson

New Member
Messages
3
Reaction score
0
Points
1
Location
Illinois
Hi everyone,

Currently I am redoing a small shower which had a bathtub and toilet. The tub was the standard 1 1/2 drain and now I would like to convert it to a full 2" if possible.

Running a new 2" pipe all the way to the vertical stack is quite impractical so I am looking on advice on running the 2" drain into the existing 3" toilet pipe.

Here is the mock up picture for reference. I would wye the 3" using a 3-3-2 and use the 2" leg for the shower drain. From my understanding the 2" pipe needs to be vented separately so I would use the previous 1 1/2 vent for that purpose.

PS Location is naperville,il


Hope I made it clear, thanks a ton again.
Tom
 

Attachments

  • IMG-1727.jpg
    IMG-1727.jpg
    63.9 KB · Views: 395

fordperson

New Member
Messages
3
Reaction score
0
Points
1
Location
Illinois
Just to add to this a bit, is the 2" drain required by code? I found this in the pluming code, but I am not sure if it indicates the whole run needs to be 2" or just the drain flange.

---
Section 890.690 Shower Receptors and Compartments
a) Shower Installation. All shower compartments, except those built directly on a
slab floor or having receptors constructed of precast stone, terrazzo, concrete,
molded stone, molded fiberglass, or an equally durable material such as cultured
stone or synthetic stone, shall have a lead, copper, ABS, PVC or fiberglass
shower pan. (See Section 890.230 entitled Safe Pans.) All sides of the shower
pan shall turn up at least 2 inches above the finished shower floor level. Precast
molded receptors shall have a minimum ¼ inch thick flange. Traps shall be
constructed so that the pan is fastened to the trap at the seepage entrance, making
a water-tight joint between the pan and the trap. Shower receptacle waste outlets
shall be at least 2 inches in diameter and have a removable strainer.
----

Tom
 

hj

Master Plumber
Messages
33,602
Reaction score
1,041
Points
113
Location
Cave Creek, Arizona
Website
www.terrylove.com
WHERE is the "Y". They probably would NOT allow that low inlet 1/4bend for the toilet, for several reasons. But, if they did the shower WOULD need its own "proper" vent.
 
Top
Hey, wait a minute.

This is awkward, but...

It looks like you're using an ad blocker. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. If you'd like to support the site, please allow ads.

If any particular ad is your REASON for blocking ads, please let us know. We might be able to do something about it. Thanks.
I've Disabled AdBlock    No Thanks