Vent Identification

[jcorbin121]

Ok I am finishing basement. I have 4 rough ins, one shower, one toilet, and then 2 PVC's next to each other , a 1 1/2" and a 3". I presume one is a vanity drain, the other is ... ?? toilet vent? shower vent? This was all put in when house was built last year. I had the plumbing co. put in a vent that was accessible to the basement so I just need to make the connection - but not sure which to build the vent from. Was thinking maybe the 3" wzas a 3" cuz they assumed a cleanout would go on that ? that would likely make it vanity drain? Are any of my assumptions correct?? Thanks for any help!


John

 

[frodo]

1 1/2 is typically a vent, I would say the 3''

 

[nealtw]

Run hot water down the drain from upstairs and the drain pipe will warm up?

 

[jcorbin121]

@Nealtw - there are no drains connected in this bathroom.....attached a pic of what I have. The two on the right are the ones in question the left is the toilet

 

[nealtw]

We will have to let Frodo figure that out, I would have expected a vent to be connected up.

 

[slownsteady]

i suspect the 3" is the cleanout. Since it is under cement, the cleanout is a valuable thing.

 

[frodo]

put a hose in the shower drain. using a flash light look in both 1.5 and 3'' pipes see what you see.
put a hose in the toilet stub up, look in the pipes with flash light

can you provide a picture of the whole room, all the pipes?

post back with findings

 

[jcorbin121]

So here is a picture of all the pipes. I ran a romex down the pipes and the arrows indicate the direction the pipes travel. I put the romex down the 3" and it sounded like it was very close to the toilet drain, not so much with the 1 1/2" pvc. I never could get the romex to show up at another pipe. So maybe the 3" is just a cleanout then would that be right? If that is so then the 1 1/2" is the sink drain. Also I should mention, we have a sewer lift system in the basement. which is in the center of the basement.

 

[frodo]

my opinion ,,,,

 

[jcorbin121]

Thank you sir ! I am going to go that direction. nd thanks to all the other replies, all of your info has been valuable!

John

 

[frodo]

now, lets focus on that 3''

did you take the cap off? look in it ? what do you see?

 

[jcorbin121]

I did, the drain looked like it elbowed back toward the shower. I ran a hose down and could not go but 18", so I used a roll of romex and got much farther , about 3' maybe 4' and could hear the romex near the toilet PVC but never saw it. same at the shower could hear but didn't see it

 

[frodo]

must be a clan out

do you know who roughed it in?

ask him

 

[oldognewtrick]

:agree: call the company that roughed in the service and ask them to come back and identify what is what.

 

[frodo]

I was roughing in a house,when a guy from down the street walked up, he said

him, you plumbed my house about 10 years ago, and the volume of hot water sucks. i have 2 ,50 gallon heaters

me, I remember you, you had me pipe your heaters in series, I told you is was not going to work.

him, yes, you did, and no it doesnt, will you fix it?

me, I'll be their after 5 $250.00 cash

 

[nealtw]

Any house we do that has plumping left for a future bathroom like this has a vent pipe going up to the plumbing above for the roof vent.????

 

[frodo]

Any house we do that has plumping left for a future bathroom like this has a vent pipe going up to the plumbing above for the roof vent.????

us also. we run a vent out the roof,

you can find it above the rough in, in the ceiling.

it would be the pipe with a cap on it

 

[jcorbin121]

Yes I verified that is present, its capped off in the basement, not exactly in the ideal location but I am grateful its already there. i'll make it work. Thanks again to all of you for your advice.

 

[nealtw]

Yes I verified that is present, its capped off in the basement, not exactly in the ideal location but I am grateful its already there. i'll make it work. Thanks again to all of you for your advice.

Basement bathroom ceilings often get dropped a little to hide plumbing and fan ducts and the fan dosn't vibrate the floor upstairs.

 

[frodo]

yeah, you can buy a cheap fart fan that fits in a tight space, but when it is used, sounds like a jet engine

or spend an extra 20 bucks, might have to get creative in the install

but it will be quiet