[mechanickid]

Not a good idea if I have that drop, then a Tee in the middle of that going to the utility sink, doubling as a vent? Maybe as 1.5" piping

[mechanickid]

This is what I'm hoping for, just because the vent now comes out up above the joists, and once I cross that doorway they switch direction, so its going to be a huge pain to go that way, and I don't know how good cutting a 2.5" hole in these joists is going to affect them,

Ahhh I'm stuck with this venting



I figure if I run the line in the drop,, this will drain any build up and also act as a vent for the sink which needs to be vented anyway... But this might not be allowed

[massplumber2008]

Hey... not that it's not creative... I'll give you that... but goes against every venting principle I can think of! :p

Why do you have to drop down.. The picture presents that you could just go across the drop ceiling and keep pipe pitched as needed... as in my version with green line?

Let me know.

[mechanickid]

Oh how I would love if it were that easy,, :(

Problems; (ive highlighted these)

The yellow is the joist directon. So if I were to do anything on this side I don't see how I would get a pice much biger than 13" up in each hole between, i thought i would have the same problem through the room but,,, if i cut the holes i coud take the one long pice and stick it up in my joists running in the first room pictured, and stick it through, all the way,

1. The Height of the drop ceeling is about 3/4" from joists to top of runners, so nothing is going to fit through here underneath the joists
2. There is a air return section(yellow box)
3.The lowest I can get my new vent is still 2.5" into the joists,
4. At that door opening,,, There is;
i) A iron Beam (light blue) but about an 8" opening from the floor upstairs to the top of this
ii) 3 2x8 Joists together (about 4.5") so this is weight bearing (orange)
iii) A joist direction change (same as orange and blue)

i guess since ive figured out i could stick one long pice through my holes, is it ok to drill a 2.5" hole through these joists? And run as the second picture :)


I hope I'm not being a pain in the a#@ for you
sorry

[mechanickid]

If I'm being a pain just tell me to figure it out lol

[massplumber2008]

We've gotten this far together... so no woriies there.. ok?

I'm off to a parade with my kid, but will pop back later and give some thoughts on this...

I got to ask... is there any room at all between bottom of joists and the drop ceiling?

Talk later..

[mechanickid]

Beginning of post 124 has it all

Have fun

Let me know

:) Thanks

[massplumber2008]

Brian... all vents must pitch from the roof to the fixture being served. There can not be any trapping of pipes/vent in any way.

Your last pic looked OK, but seems to me that you would still need to drop down from the joist bay and into the boxout with beam anyway and then run back up so don't think this will work.

You could drill the joists at center if joists over say 8.5 inches tall..?

Otherwise... you sure you can't just run a pipe up inside a closet somewhere..? Check all again... let me know.

MARK

[mechanickid]

Hey mark,

Well even if I do go to a closet,, I still have the issue of opsit direction joists, and that return air ducting for the furnace

How do I get a section of pipe longer than 12" going opsit to the joists in there too?? You see my dielma

[mechanickid]

The closeist closet will require a 15 ft run still :-/

[massplumber2008]

All I can tell you here Brian is that as a plumber, if I was having this inspected I would find a way to get that pipe up and into the attic and out the roof OR I would find a way to get it to the 1st floor bathroom and I would cut into a 2" vent up there (at 42-48" off finish floor)...

You'll find a way! Didn't I tell you I chased your telephone number down and determined your address and the plumbing police are on the way right now to inspect this... :) So best do good job... :p :p

Keep me posted... Don't hesitate to discuss this with us though... we never mind helping!

[mechanickid]

To go to the closet, I would have to go the opsit direction about 8 ft possibly more, and then make a left turn for another 5ft, there is 2 ducting pipes and 1 return ducting which is 2 joists wide

[massplumber2008]

Didn't think it was going to be easy! Or you wouldn't be asking this question!

[mechanickid]

Haha nice, well I have been staring at this celing for a weak now :( grr maybe I'll just cut a hole through the kitchen floor and make it to the attic then :) haha, but I'll look at all of my options, its going to be difficult no matter what so il will try to get this a good way

[massplumber2008]

Good attitude!

I can't tell you how many times I wanted to cry trying to get a vent to the attic... especially in cases like yours. BUT I always found a way and in the end always was easier than I thoughT!

Let us know how it goes!

When is the first shower planned?

[mechanickid]

So,, for some guidelines,,

Vent has to pitch up from drain use long 90's or 45's

Lol anything else?

[mechanickid]

Haha it was planned for last Sunday :-/

[massplumber2008]

YUP... vents pitch, too! For vents you can use regular 90s and 45s.

Have you installed the shower doors?

[mechanickid]

No I haven't installed them yet, I'm waiting to do the walls and doors and stuff justincase I need to pull the one wall off to get to the venting pipe

[massplumber2008]

FYI... can also run this vent outside of house to above roof line if absolutely necessary... with conditions! Let me know...