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darren 05-07-2010 08:32 PM

venting
 
I have been looking at my basement and trying to come up with a design for a future reno.

What are the rules regarding the venting pipe(i.e total length, amount of 45 and 90)

Here is what I would like to do and am curious if this would work.

Run vent up from fixture 6', 90 bend, 15' straight run, 90 bend, 25' straight run, 90 bend, 15' up the roof.

Thanks

The Engineer 05-10-2010 11:57 AM

What type of fixture? Just a regular utility type sink? You can run a 2 inch vent up to approximately 150 feet depending on how many fixtures are connected to it. If just one fixture, you'll be all set. It doesn't really matter how many 45 or 90 degree elbows you have, as long as the vent is pitched slightly back to the fixture and avoid any trapped sections so any rain coming down the vent will drain out.

darren 05-12-2010 09:56 AM

It would be a bathroom(toliet, sink, shower) and a laundry room, either a laundry tub or a drain for the washer.

Thanks for the info.

bluejeans 05-12-2010 10:23 AM

darren, can you run the vent over to the existing vent stack?

darren 05-12-2010 11:14 AM

I end up about 5 feet past the stack in the way i describe it. The reasoning for this is because I can open up the main floor bathroom walls(which i plan on ripping out after doing the basement bathroom) and feed the vent up through there and then probably through the roof.

bluejeans 05-12-2010 11:35 AM

There is a device called a quick vent.When people wanted sinks in a kitchen island,this is the only way to vent.If they are legal in your area its another option.I would use more than one 2" for what you are doing.I also wondered if it's necessary to go through the roof.Do some studying of your local plumbing code.


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