"slakka" wrote in message
...
On Jun 1, 4:29 pm, DerbyDad03 wrote:
On Jun 1, 2:36 pm, slakka wrote:

Dear NG,
I live in a tenement on the lower east side of nyc on the fourth
floor.
In my bathroom, both the tub and sink drain into the same
"main drain" and get routed down from there.

Question,
what is the professional name for the "main drain"?
. The leek was in the "main drain" and I need the professional term
for it please.

Thanks in advance!

slakka

If you mean the vertical pipe that the various drains wye into, it is
typially referred to as the "soil stack".


http://www.inspect-ny.com/plumbing/1621s.jpg
Confused, this diagram refers to the toilet as the soil stack-
bathroom sink as the waste stack?

http://chestofbooks.com/home-improve...-Residence.jpg

Confused here as well. Around the midwest it's called the main stack?

Rich