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-   -   what kind of wye do I need? (http://www.diychatroom.com/f7/what-kind-wye-do-i-need-108377/)

graysqwrl 06-21-2011 05:32 PM

what kind of wye do I need?
 
I'm moving a toilet, which means I have to tie into the main sewer line.

Also, I've never done this before.. I'm not a plumber, so please be kind

I dug down to the sewer line closest to where the toilet will be installed and found this:

http://timemanagementpresentation.ne...sewer-line.jpg

To the right heads out to the street and the sewer. To the left is the rest of my bathroom and the end of my house.

The plasic pipe is the shower & sink drain for the bathroom. The toilet is currently a few feet to the right, but in order to move it would require me cutting supports to have it drain to its current location.... which I'd rather avoid doing if possible.

Anyways, What kind of wye would I need to basically replace that fork that's currently there. I'd leave the 2" drain, if possible.

Thanks for your help.

Please let me know if you need more information

graysqwrl 06-21-2011 06:08 PM

I was thinking it might be best if I used a 4" tee leading into a 4" 45 degree elbow and couple that to the end of the pipe before the cast iron wye where the 2" is. That would put me slightly to the left from where I want to be, but I'm sure I can work that out.

Does that sound like the best solution?

tom31415926 06-21-2011 07:29 PM

i'm not an expert, but
 
It appears to me that the flow in your picture is from right to left.
You may want to double-check so that a real expert can help you better.

Sorry I don't have an answer to your question.

Tom

graysqwrl 06-21-2011 07:40 PM

Nope... I'm quite sure it's from left to right.

It looks like the 2" was installed backwards. Someone recommended I cut on the other side of the 2" wye and replace the whole run... which I might do.

TheEplumber 06-21-2011 08:40 PM

Quote:

Originally Posted by graysqwrl (Post 671564)
Nope... I'm quite sure it's from left to right.

It looks like the 2" was installed backwards. Someone recommended I cut on the other side of the 2" wye and replace the whole run... which I might do.

Flow direction of that wye is right to left. Is that building drain a 3 or 4" pipe? 3" is minimum for a toilet.
I'd cut down stream of that wye, attach to the pipe with the new fittings and route it to your new toilet. Tie in the existing 2" where possible.

graysqwrl 06-22-2011 12:17 AM

I stand corrected...

I dug out quite a bit more and got out the level. Sure enough it runs right to left.

It's kind of odd because neighbors have told me that the sewer is out in the street (which would be to the right). To the left runs to the rear of my property. Oh well... you live, you learn (I only bought the property last year)

The building drain is 4"

I suspect I need a 4" x 4" x 4" sanitary wye & street 1/8th bend or sanitary combo to create the vertical stack for the toilet, then I need a 4 x 4 x 3 sanitary tee to be placed vertically where the 3" runs to the toilet?

is that correct?

Thank you for your help.

just a guy 06-22-2011 05:23 PM

a sketch of what you are intending to do in relation to what you have would be helpfull


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