DWV help please

[BimmerRacer]

Can I do this?

http://jkuper.smugmug.com/photos/474359801_mLJJ9-L.jpg

The pipe to the left is the 1 1/2" vent which used to have a lavy hooked up to it. The one with the rubber cap is the tub drain. Can I add double vanity in the manner depicted?

http://jkuper.smugmug.com/photos/474337216_bngo3-L.jpg

Thanks

[trip-l-jax]

From what I see your double vanity is not vented.
Second, your DWV appears not to code as there is no indication of purple primer in areas.

[BimmerRacer]

Is connecting it to the 2" vent not making it vented due to the length of the run? I have another vent stack which is closer, but it has a shower connected to it and its only 1 1/2".... Any other options?

Thats an interesting point about the primer. The shower drain did just fall out of that T. Was the primer purple 25 years ago? I will likely have to redo join anyway as I need to put in a header for windows on that wall.

This is the shower drain I am talking about.

http://jkuper.smugmug.com/photos/474381351_PTTQA-L.jpg

[Terry]

Your drawing should have the waste from the lavs below the tee for the tub.

The double lav would use a fixture cross like the drawing below with the vent in the center.
A 2" waste line would be needed for two lavs,
You can then use a 2.0 'x1.5 'x1.5 'x1.5 ' fixture cross.

http://www.terrylove.com/images/lav_rough_double_b.jpg

[BimmerRacer]

So, like this? The old 1.5" vent is pretty useless, eh?

Is there any flexibility? I have three skylights right above the vanity, is it possible to move the vent?

http://jkuper.smugmug.com/photos/474409443_M6YAg-L.jpg

[trip-l-jax]

How was the original sink vented?
Your vent should tie into the other vent above waste flow,unless you plan on a vent going through the roof.
i.e. at the location above the tub drain if possible.
I would install a cleanout, being you have a double vanity, cheap insurance.
I know the purple primer has been out 23 years ago at a minimum.

[BimmerRacer]

Your drawing should have the waste from the lavs below the tee for the tub.


How was the original sink vented?
Your vent should tie into the other vent above waste flow,unless you plan on a vent going through the roof.
i.e. at the location above the tub drain if possible.

:confused:


How was the original sink vented?

I know the purple primer has been out 23 years ago at a minimum.

Original sink was not a double...they were at two corners of the room. One of them was on the 1.5" vent you see in the diagram.

House was built in 1982

[nhmaster]

Your second drawing is correct, cut out and cap off the old 1 1/2" lav connection.

[BimmerRacer]

Can I just leave it there? I can't just cut it at the connection, I'd have to cap it at the roof as well. This is, by the way, after I moved that thing once already as we moved the wall it was in :mad:

[hj]

You can do almost anything you wish to with the vent, except run it downhill. I do not know what the pipe to the left is for, or what its purpose is, but it can stay there if it is not in your way.

[trip-l-jax]

:Is there any flexibility? I have three skylights right above the vanity, is it possible to move the vent?



[QUOTE=BimmerRacer;185023]:confused:



Original sink was not a double...they were at two corners of the room. One of them was on the 1.5" vent you see in the diagram.

House was built in 1982

Your second drawing was a little confusing as it did not show where you were venting directly to. Whether it was to the original vent for the single sink or not, with the mention of moving the vent due to skylights above.

What Terry and I were getting at was to ensure the vent was installed above the level of where waste will travel, avoiding a wet vent. Your first drawing would make the tub wet vented.

[BimmerRacer]

Sorry, still confused.

What I think you guys are saying is

- add its own vent to the double lavs
- run the 2" combined drain from the double lavs to below the 1.5" tub drain
- the existing 1.5" vent is not serving any purpose

Are there other options? This is the layout. The tub DWV is right between the two windows above the tub and the other 1.5" vent is in the wall between closet/tub. I am going to build out the exterior wall that the vanity is going on as I discussed in this thread http://www.terrylove.com/forums/showthread.php?t=26676 another 4" so I have room for plumbing after I added 4" of rigid foam insulation.

http://jkuper.smugmug.com/photos/471773735_buuuw-S.jpg
http://jkuper.smugmug.com/photos/474855105_JH8om-S.jpg
http://jkuper.smugmug.com/photos/473640283_Tz8GG-S.jpg

Thanks again!

[BimmerRacer]

Exterior view, don't mind the plywood "window", courtesy of a fallen tree :mad::mad: You can see the two vents there.

http://jkuper.smugmug.com/photos/427429780_oehJX-S.jpg

And the old layout

http://jkuper.smugmug.com/photos/367758346_mSHL4-L.jpg

[trip-l-jax]

Yes run the 2" combined drain from the double lavs to below the 1.5" tub drain.
The new lavs do need to have a vent that is represented in your second drawing tied into another vent if you can.
Is there any way to take your new double lav vent over and away from the skylights and tie in to another existing plumbing vent (maybe the existing 1.5" vent that is not serving any purpose) from above the ceiling or in the attic area ?

[BimmerRacer]

Well, there's really no attic...how far over can I run the vent? Can I go up from the lavs, back toward the entrance to the room and over into the vent that is in the closet wall? I would disconnect it from the 2" drain it's connected to.

http://jkuper.smugmug.com/photos/474877880_kweXU-L.jpg

[trip-l-jax]

Well, there's really no attic...how far over can I run the vent? Can I go up from the lavs, back toward the entrance to the room and over into the vent that is in the closet wall? I would disconnect it from the 2" drain it's connected to.

http://jkuper.smugmug.com/photos/474877880_kweXU-L.jpg

You can go as far as it takes. Yes you can do it as you describe.

[BimmerRacer]

Not quite...can't go straight up from there and into the joist bay. You guessed it, the skylights.

Can I go up, over, up, over, up?

http://jkuper.smugmug.com/photos/474898693_8hdVE-L.jpg

There's got to be some sort of max lengths clause to prevent me from doing this. I just know it would be my luck!

[trip-l-jax]

Not quite...can't go straight up from there and into the joist bay. You guessed it, the skylights.

Can I go up, over, up, over, up?

http://jkuper.smugmug.com/photos/474898693_8hdVE-L.jpg

There's got to be some sort of max lengths clause to prevent me from doing this. I just know it would be my luck!

You can do what it takes to vent the sink. Do not be concerned with length of run. Look up a revent, it is similar to what you are doing.

[BimmerRacer]

Cool, thanks. And as far as the drain length as long as it's pitched properly at 1/4" per foot I should be OK?

[trip-l-jax]

Yes that is correct. I'd slope the vent at 1/4" per foot horizontally (the above portion) so rain water will not set dormant in the pipe.

[BimmerRacer]

Thank you, I am sure I'll be back with more questions

[trip-l-jax]

1/4'' slope your vent, not sure if you saw that.

[hj]

There are maximum vent lengths depending on the pipe size, but I have never had any inspector who enforced them.

[BimmerRacer]

1/4'' slope your vent, not sure if you saw that.

I didn't see that, thanks


There are maximum vent lengths depending on the pipe size, but I have never had any inspector who enforced them.

Just out of curiosity, what is it for 1.5" pipe?

[BimmerRacer]

Part 2 of this bathroom

We used to have a sink, a bidet and a toilet in this area. We are putting in a toto/washlet combo, a pedestal sink where the bidet was and a steam shower generator where the sink was. I am fairly certain I can just extend the old bidet drain and hook a pedestal sink to it. BUT, what do I do about a steam unit?

The steam unit is a Kohler K-1733 and I have a Steamist drain pan for it.

http://images1.hdpi.com/product_enlarged/Steamist-drainpan.jpg

How does that sucker get hooked up? AFAIK, it has to be set pretty low so that the steam pipe is pitched towards the unit and is low in the shower itself. So, basically the pan is going on the subfloor.

http://jkuper.smugmug.com/photos/475018827_nBKmp-L-2.jpg

The unit is going on where you see the capped copper supply for it.

[trip-l-jax]

I didn't see that, thanks



Just out of curiosity, what is it for 1.5" pipe?

This should give you an idea page 118.

http://books.google.com/books?id=euDzsOnRxg0C&pg=PA118&lpg=PA118&dq=maximum+drain+vent+lengths&source=web&ots=n_91T2--Pl&sig=qbKV1HaOz925Z0QWLuT5FpWBpUA&hl=en&ei=jd-ZSdKAL6TUMMHWlPIL&sa=X&oi=book_result&resnum=10&ct=result#PPA118,M1

[BimmerRacer]

:eek: UNLIMITED :D Thanks again

[trip-l-jax]

A lot of it depends on the number of fixtures being tied to it along with pipe size. You can scroll the book as it may answer some of your future questions.

[BimmerRacer]

Yea, I was trying to look through it for the steam shower stuff and it looks like those pages (even if that is covered) are not part of the preview. :(

[trip-l-jax]

I'd put the steam shower in a new thread.

[BimmerRacer]

We'll do...tried to reply to your PM but says you can't receive.


I'd start a new thread on part two of the bathroom to get an answer.

Yeah, I was thinking about that. Every forum is different on that. I got yelled at for starting a new thread on the same project over at John Bridge :D

I'll snap a few better pics in a little bit and start a new one.

Thanks a lot for your help. I just hope I can do it myself. I can read and follow directions so I think I can get it done.

[kingsotall]

Shouldn't have shown the last pic, those pipes are a mess! :eek:

I see a shower draining into what looks like a reg. 90 then a santee. Should be a long turn then a combo or better yet shower p-trap to a 45 to a wye.

Pipe that joins toilet drain looks like a bushed down santee as well.

[BimmerRacer]

There's no shower in that pic, shower drain is here


http://jkuper.smugmug.com/photos/474381351_PTTQA-M.jpg

I am not sure what I can do about that fernco coupler...

[kingsotall]

What is that drain that looks like a p-trap is connected to it¿ A floor drain¿

[BimmerRacer]

Old bidet drain...see http://www.terrylove.com/forums/showthread.php?t=26819

[hj]

did you get a video of the tree meeting the window? Don't forget to install a cleanout tee beneath that back-to-back fixture fitting. It is good plumbing and also a code requirement here.

[BimmerRacer]

Do u have a pic or a diagram of that cleanout? Or more specifically

- Do they go onto vertical or horizonal pipe? Does it matter?
- When you say beneath, do u mean beneath tub/double vanity drain joint. Or beneath the toilet/pedestal? I have one about 2' below the floor on that stack where the closet drains into. Or so it says on the wall :)

No video, sorry, I'll try to be better prepared in the future :) Still will have to satisfy for now

http://jkuper.smugmug.com/photos/340318477_AsSJV-XL.jpg
http://jkuper.smugmug.com/photos/340319993_SKviy-XL.jpg

[iminaquagmire]

Is this a different bathroom than the one with the steam generator and pedestal? Its confusing with all the talk of double vanities and pedestal sinks and whatnot.

I think what HJ is saying is to install a cleanout tee on the drain for the double vanity.

Fitting for double vanity:
http://i64.photobucket.com/albums/h181/iminaquagmire/Forums/BimmerRacer4.jpg

Cleanout Tee:
http://i64.photobucket.com/albums/h181/iminaquagmire/Forums/BimmerRacer3.jpg

Put it here (borrowing Terry's double vanity image):
http://i64.photobucket.com/albums/h181/iminaquagmire/Forums/lav_rough_double_b-1.jpg

[BimmerRacer]

Same bathroom :)

http://jkuper.smugmug.com/photos/474855105_JH8om-L.jpg

And I think I need to change the drain route a bit

http://jkuper.smugmug.com/photos/476380099_G6yBR-L.jpg

[BimmerRacer]

Quick sanity check here.

Background- Exterior wall is 2x6" and I don't have enough room for both pipes and required amount of insulation (R-24 in my case). So, I am adding another 2x4" structure in front of it.

Based on the diagram below, I am not violating any 60/40 rules, correct? This is to run the 2" drain pipe in the wall.

http://jkuper.smugmug.com/photos/476660946_8Tx7v-L.jpg

[BimmerRacer]

http://jkuper.smugmug.com/photos/486739123_EaTgZ-M.jpg

http://jkuper.smugmug.com/photos/486739216_6QbMM-M.jpg

2" drain is for the double lav vented separately and 1.5" off the tee is for the tub

[kingsotall]

Why not use a santee and tie the lav vent into the vent shown in the attic¿

[BimmerRacer]

Which post/pic are you referring to?

[kingsotall]

http://jkuper.smugmug.com/photos/486739216_6QbMM-M.jpg
This one.

[BimmerRacer]

Short answer is I don't know. Long answer is it's a double lav, going about 12' away from where you see the drain come up and I don't really have a wat to route it to that vent due to windows on that wall and I have a now unused 1.5" vent which I can fairly easily get to.

http://jkuper.smugmug.com/photos/486738950_KNBNh-L.jpg

Here it is, coming directly above the drain. So, the view of that wall will be

[BimmerRacer]

Now I have to check with the wifey on counter height.

http://jkuper.smugmug.com/photos/488831880_h3yHa-L.jpg