Replies

1. 
   bosn | Sep 04, 2005 11:44pm | #1

   I think it is called a sanitary "T"  and there is a maximum distance that the stool can be from the stack.  If the stack is in the wall behind the stool, you within the max.  If the stool is farther from the stack, you need to check with a plumber.  There is another fitting you can use for the stool that has a vent on the side of it.

   If you haven't drawn blood today, you haven't done anything.

2. 
   GregWerner | Sep 05, 2005 03:53am | #2

   No tee's allowed anymore. Has to be wye's. Check with local codes may be different wher your at.

   Greg

   Werner Building &  Remodeling

   Huntingdon PA

    

3. 
   donk123 | Sep 05, 2005 04:31am | #3

   Is this already a drainage line, or are you talking about tying into an existing vent? Around here, that's called a wet vent and it won't fly, it's a code violation.

   Don

4. 
   cliffy | Sep 05, 2005 04:55am | #4

   In these parts we can't use a tee on the horizontal.  It would have to be a wye.  Only five feet from the stack as it goes up you would be okay but I would ad a 1 1/2 inch vent or a 2 inch wet vent and pick up the sink.   Make sure the wye for the vent is turned 45 degrees up from the 3 inch. 

   Good luck,

   Cliffy

5. 
   jrnbj | Sep 05, 2005 04:05pm | #5

   Thanks all for your answers....we have worked it out as follows, starting at the roof....
   1) 3" vent stack, picks up the sink drain run through a wet wall with a sanitary tee
   2 3" turns at a 90 with a 2" side branch (I don't know the magic plumbing name for the fitting, sorry) that picks up the shower that's to the left of the wet wall
   3) 3" runs ~3' horizontal in ceiling under the wet wall to a 3" long sweep wye that picks up the toilet (comingin from~ 3' away)
   4) 3" continues another ~5' to another 90 with 2" branch (2" on the heel of the 90 this time) picking up another sink (this sink has its' own 2" vent through the roof
   5) and from there, another ~15' in the ceiling, with 1 flat 90, and bown the new main stack.

   It all looks good & workmanlike, with proper pitch....but the HO (chief engineer at the hotel I'm on a project at; miss my family so I spend my off days helping him with his addition...) got failed by the inspector right out of the box for not having a Portapotty on site, even though the main sewer line was to remain intact through the job....so he's nervous!

   Thanks again everyone, & one more question....what precisely defines a "wet vent"? I mean, in your typical 3" straight up & down main stack scenario, lots of fixtures tie in at different levels...

1. 
   Shacko | Sep 05, 2005 07:09pm | #6

   This is general information, a wet vent is a vent that has a fixture connected to it. there is more to this but, it becomes too techical.  Luck.