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If you changed the trap all the way to the wall when you chnaged sinks... did you leave the pipe that goes into the wall too long... thus cutting off the vent line when its pushed all the way into...

Thanks tom... there is plenty of lead riser for me to work it back over the brass flange, and as you said the wax seal will keep it from leaking.
I thought it would be OK if I just hammered the lead...

OK... let me first say thanks again for all the prior help.

What's there:
Concrete floor
3" cast iron
Lead pipe connecting closet flange to closet el
Brass closet flange will end up at 1" over...

Excellent... thanks so much for all your help... you guys are the best!.

I feel so much better now covering it up and moving on with this job... I will be sure to post a few pictures once I get...

Are you talking about what is next to the PVC line in this picture?


If it is,that is the closet flange with a rag stuck in it... not a clean out... and the fernco is tied into the vent... is...

Shrug... I guess it's good to go :confused:

Guess I can pour the cement.. well... I hope it's OK, anyway.

Well... the vent pipe that is coming out of the waste pipe for the toilet leads to and connects to the lavs' vent... I put a "T" there and ran the line from the new shower into the "t" thinking that...

Tom,
Thanks again for all your help... have a great holiday weekend...

Here's what I ended up doing...

Just wanted to be sure it's OK... before I burry it... the copper pipe the pvc is fernco'ed to ties into the lav vent and nothing else uses this as a drain...
...

OK... after having to wait for the new pan to come in I finally jackhammered the slab today... Indeed that 2" pipe comming out of the slab and connecting to the lav vent is the toilets vent.....
...

I'll let you know what I find... I won't be starting the rip until the shower base comes in, I expect it by the 13th and should start the rip early the following week..


Thanks again for helping...

Just one last question...

That horazontal 2" pipe that leads to the lav vent... that was what I was planing on taping into for the shower vent... once I find out what it's hooked up to... is that...

Ok... this is too funny... (I got the house this way)... but that 45degree copper pipe is the supply line to the toilet on the other side of that wall on the right... I would have never run that pipe...

OK, thanks for all the help with my confusing questions... I think I got it now though...

Do you have any guess as to what that 2" pipe that comes out of the slab with a rise of about 48" that...

Ok.. after some reading and searching here (what a great site)...
I understand this...

"Code forbids you to discharge a major fixture, (such as a toilet) past a unvented minor one, (such as...

As tommyman says... you don't use concrete backer board on a shower floor... you need to do a pan/concrete pour(with pitch) before you can tile.

Ok...

About the lav/washer waste:

The lav/washing machine are run into the main line above the slab at a "y"... with the vent from the toilet coming out of the slab on the other side of the...

Here's the deal... I am going to be adding a shower to an existing 1/2 bath in my basement.

The toilet is vented up out of the slab on the other side of the wall,in my utility closet, makes about...