On 1 Dec 2005 15:41:11 -0800, "Larry Bud"
wrote:

Bought a book on plumbing, but it doesn't seem to address my particular
situation in the basement:

Adding a wetbar right next to the drain stack. No more than a couple
feet away depending on how the cabinets all line up...

1) I take it I MUST vent, but then I read some things that indicated
distance from the stack was important as far as requiring a vent or
not. So, do I need to vent?

2) If so, any reason not to use an air-admittance valve since a vent
line is not easily accessible?

3) If you suggest not using a cheater valve, I'm trying to figure out
how to do a loop valve. All the diagrams I have loop it under the
floor, which isn't going to be easy in a cement basement! ;-)

Thanks all again!

An air admittance valve would meet the IPC in this instance but not
the UPC. Depends on your locally adopted code. I'd allow it but
others might not. The vent is required regardless of distance from
the stack if it is draining waste from a higher floor.

Dan