On Thu, 12 Jun 2008 11:53:54 -0400, EXT wrote:

"franz fripplfrappl" wrote in message
...
On Thu, 12 Jun 2008 13:30:10 +0000, JC wrote:

"franz fripplfrappl" wrote in message
...
I'm using 2" DWV pipe for bathroom/kitchen sinks and vent. I'm in
the process of constructing the walls. Can I get by with a 2x6" wall
or do I need 2x8"? I will be boring the studs to accommodate the
pipe.



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================================================= Franz Fripplfrappl

If they are not load bearing, I see no problem with 2x6. But, I think
you're going to find that most fixtures are geared for 1 1/2" fittings
so why use 2 inch pipe?

It's venting to roof. I have 3" to septic, toilet. Using 2" vent.

Is this legal in your area? Here you must have at least one 3" vent
line, secondary vents for additional sinks, toilets, etc. can be 1 1/2"
pipe and if they don't tie back into the 3" main vent they must expand
to 3" as they exit the roof.

Already checked: vent cannot be smaller than 1/2 of pipe. A 2" works
just fine with the 3" system.



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=================================================
Franz Fripplfrappl

On 2008-06-12, franz fripplfrappl wrote:

Already checked: vent cannot be smaller than 1/2 of pipe. A 2" works
just fine with the 3" system.

There is also typically a requirement that the aggregate vent size be
at least as large as the building sewer (main drain). Or sometimes
there is the stronger requirement that at least one vent is as large
as the building sewer. Just FYI.

Cheers, Wayne

On Thu, 12 Jun 2008 17:53:50 +0000, Wayne Whitney wrote:

On 2008-06-12, franz fripplfrappl wrote:

Already checked: vent cannot be smaller than 1/2 of pipe. A 2" works
just fine with the 3" system.

There is also typically a requirement that the aggregate vent size be at
least as large as the building sewer (main drain). Or sometimes there
is the stronger requirement that at least one vent is as large as the
building sewer. Just FYI.

Cheers, Wayne

Thanks. Already ran this past the building inspector and I'm fine with a
2" vent through roof.



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=================================================
Franz Fripplfrappl

On Jun 12, 2:26 pm, franz fripplfrappl wrote:

Thanks. Already ran this past the building inspector and I'm fine with a
2" vent through roof.

Ask him if he'd accept an air admittance valve. It'd save you the
extra work and roof penetration.

R