Vent Stack

[chase]

I recently had a plumber re-route a vent stack involving a couple of 90 turns. I noticed after he left that there is a 'reverse slope' to some of the pipe. In other words there are a couple of places where the gas will have to follow the pipe down for a short distance then continue on up. It looks like he may have cut one of the pipe runs a little too long which forced the 90s on either end to be a bit too high and too low respectively. Will the stack still work properly? Will sewer gas still be able to escape?

Thanks,
Chase

 

[Terry]

The vent pipes shoulld grade down, or at least be flat.
If not, they will hold rain water.
A little water depth would still allow air to go by, but it's not how I would do it.

You can throw a level on them, and see if they are.
It's not always easy to eyeball them.
Unless of course, you've become a trained plumbing mechanic.
At least that's the story I'm going with.

 

[Sponsor]

 

[Kordts]

Terry,
when you got your RK, did you ask the doc to install the micro bubble with gradiant lines? I know it costs a little more and insurance won't cover it, but now when you "eyeball" something, you aren't just "eyeballing." You know exactly how much pitch there is.

 

[Cass]

Terry,
when you got your RK, did you ask the doc to install the micro bubble with gradiant lines? I know it costs a little more and insurance won't cover it, but now when you "eyeball" something, you aren't just "eyeballing." You know exactly how much pitch there is.

Kordts, I like the idea, I will have that done when I go to have my eyes done.

 

[Kordts]

Let me know how that turns out.