Vent section sloped down the wrong way above bathroom

[Plumb-This-That]

I drilled the vent joists right after I finished drilling the drain joists below by mistake so now the vent section above the bathroom is sloped the wrong way for about 6'. BUT, where it connects the vent going to the roof, the vent stack is sloped correctly going up. Now in case of water coming down from the roof vent the water will ride the vent pipe and pass by the 6' vent section without clogging it. If water does go in that 6' section it will drain back down the main vent even though it's sloped the wrong way so the water will drain towards the vent stack instead of draining toward the drain pipe below... Basically it's an impossibility for this section to clog even though it's sloped the wrong way.
The reason I'm asking and I'm worried about this is that knowing the goon he'll most likely fail me if he notices it.
What to do?
I haven't connected this section to the main vent yet as you see in the photo but I hate to hack the josts. I just despise doing that.
I hate to have one on me like that... What do you think I should do?

 

[Jeff H Young]

there is a technicality in IPC plumbing code that says (paraphrasing) that it must drain out not nessesarily to the pipe its serving.
so if that can drain and not trap any water at all I think IPC allows it. My Code UPC is a fail I dont know NYC code if its IPC or its own code but its not UPC so hope you can check your code but it cant hold water

 

[Sponsor]

 

[Plumb-This-That]

The problem is that if I remove the pipe and start drilling the joists the other way, ONE, the joists will look double drilled, and the worst part it the first joist will end up with less than 2" at the hole. So it would be ugly and unsafe.

(BTW, if you noticed the vent pipe extruding out of the wall, it's because that wall is installed on top of a TJI joist and under a 2x12 joist so to get the 2" pipe in the stud bay I would have to hack the floor and the ceiling joists. This is way I put the joist out of the wall and I'm building a 3" wall to incase the pipe...) I don't like to hack structures.

 

[Plumb-This-That]

Hey Jeff, you said "there is a technicality in IPC plumbing code that says (paraphrasing) that it must drain out not nessesarily to the pipe its serving." What's the section number of this IPC code?
Thanks Jeff

 

[Plumb-This-That]

Basically I've decided, code or no code just avoid pins and needles. I'm going to cut the horizontal vent section and discard it, plug the holes that I made using the hole saw cores and glue them then drill new holes about a foot away from the wrong holes in each joists sloped up the proper way. This way I'm not weakening structure.
Thanks Jeff.

 

[Jeff H Young]

905.2 I looked it up, read it and it isnt crystal clear to me though others told me ipc its legal I dont know if glueing a piece in the joist does much but a hole a foot away should be fine

 

[Breplum]

Gluing plugs in the joist will do absolutely nothing structurally.

 

[Plumb-This-That]

905.2 I looked it up, read it and it isnt crystal clear to me though others told me ipc its legal I dont know if glueing a piece in the joist does much but a hole a foot away should be fine

Thanks Jeff no matter, it's been rerouted a foot away sloped up.
Also I like to plug holes for aesthetics not structural. I usually sandwich holes with plywood if I'm close within less than inch to allowed holes in I-joists for structural reasons. I don't go beyond one inch though. Example in the photo below.
I sandwiched each I-joist with 2 snug 23/32 plywood, glued and screwed then drilled the WC 3" holes for 2 I joists, then when I picked up the lav/tub I swung a 45 jotting a foot away.

 

[Plumb-This-That]

Gluing plugs in the joist will do absolutely nothing structurally.

Only for aesthetics, I hate to leave holes behind, or wads of newspaper or sandwich wrappers or bottles of urine. I've seen guys do all sort of things... example below plugging up an unused hole:

 

[Jeff H Young]

seen a few things too do all kinds of stuff like take a crap in a bath tub I havent seen them do it but seen the aftermath , Darn Drywaller.

 

[Plumb-This-That]

seen a few things too do all kinds of stuff like take a crap in a bath tub I havent seen them do it but seen the aftermath , Darn Drywaller.

Ha! Bottles of urine left behind a good thing compared to what an electrician buddy of mine went through once. He was working on a large single family new construction when all of a sudden he said he felt liquid on his shoulder, he was in a bump out area of the house with its own roof working while the roofers were up on the roof. He then said that it smelled like horrible urine. He ran out and the guy was zipping up! Yup. He told him off and had a fight. Long story short some people are just awful.

 

[Jeff H Young]

roof drains and vent pipes arent safe either