Venting

[davidgrove]

I would like to install a toilet in a location that would have a 4' horizontal run from the closet flange to a vent. Is this acceptable, codewise?

Thank you.

DG

[Terry]

As long as the toilet is vented, it's okay to use either a 3" or 4" line.

Vents in most locals can be 2" if it's jus the one fixture.
The max length would be six feet from the flange to the vent.

[davidgrove]

"As long as the toilet is vented,"

That's what I'm wondering about. A 2" vent line would tie into the horizontal-running waste line 4 feet away from the toilet. The toilet would sit on the closet flange, which makes a 90, then runs horizontally 4 feet, at which point a 2" vent line ties in from the top of the waste line, and then the waste line continues another 8 feet, or so, where it does another 90 and goes vertically down and out.

Is venting the toilet 4 feet from the closet flange OK?

DG

[bigrebnc1861]

to answer your question I would say you can. Because the maximum distance allowed from trap is 6 feet on two inch pipe, and you can have 3 fixtures on two inch pipe.

[davidgrove]

Thank you all.

DG