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Ultralight · Oct 25, 2007, 07:48 AM

Next step in my bathroom remodel is getting the floors up and new floors down. I have a 3" copper toilet drain with a copper flange soldered to it. I know I can use a torch to get the flange off.

But, what should I replace it with when I get my new floor in. I am having a hard time locating copper closet flanges and it may be a bit hard for me to solder it in there after the floor was installed.

Can I use something like the Oatey Twist-n-set? Any other recommendations on a flange to go into 3" copper? I'm a little worried about controlling the height of a twist-n-set so it willsit on my new floor.

Thanks,
Steve

TiredOfRepairs · May 25, 2010, 06:49 PM

Hi Steve:
I am also in your position just that I have a coppey "Y" and couple of elbows goes for approx 22.5 inch (may be more) going to the top. I found that the last owner put PVC flange on top of it (which is absolutely wrong). And the joint between copper and PVC was leaking.
I have something similar to what you have just that couldn't find copper flange so thinking of putting a copper pipe and using fernco coupling from copper pipe to PVC to pvc flenge but this total hight of this setup is high.

Got someestimates and "master" plumbers suggested removing copper "Y" with PVC pipe by cutting copper. They gave quotes of around $1200 for this and that seems way high. I am looking for a less invasive approach.

So just curious what did you endup doing? Your help/answer is highly appreciated.

massplumber2008 · May 26, 2010, 05:40 AM

Hi Tired...

The post you jumped into is from 2007 so I'm confident that Ultralight may not return... especially since he doesn't appear to have gotten an answer to his original question... ;)

I'm off and running to work, but when I get back in I will look this question up again and post an answer... look for it later today.

Mark

TiredOfRepairs · May 26, 2010, 11:53 AM

Thanks Mark. Actually the total height from the first elbow to the floor is only 5.5 to 6 inches. Where as the total propose set up height is around 22 inches.

Do they make flange that can connect directly to Fernco coupling and is it legal? What do other people do when they have copper pipe and couple of elbows up to the floor? How do the people did such things 40 year back (thats when when the house was built)? So many questions but whatever you can answer would be highly appreciated... Just moved in so can't afford money equal to my monthly mortgage... Thanks for your help...

massplumber2008 · May 27, 2010, 04:52 AM

To make this all legal, you can't use the all rubber fernco couplings... you'll need to purchase a copper x PVC plastic shielded mission (or proflex) transition clamp... see image.

40 years ago... they simply installed more copper pipe and fittings... ;)

Since height is an issue you should be able to use street fittings (hubless on one end). For example, you could cut the copper, install the shielded mission clamp and then install a 4"x3" STREET closet flange directly into the shielded clamp. With any luck that will work for you. Keep me posted... O.K?

Mark

TiredOfRepairs · May 27, 2010, 05:05 AM

Hi Mark:
Thanks for the update.
Yes, I have similar metal shielded copper to pvc coupling. My question is, since I do not have too much height to use the street coupling, can I put the flange into the copper to pvc connector directly?
Am I missing something here?

Thanks a ton for your help.

I will let you know.

massplumber2008 · May 27, 2010, 05:40 AM

As long as that clamp is an approved shielded transition clamp then you sure as heck can.

TiredOfRepairs · May 27, 2010, 09:23 AM

Thanks Mike. I really appreciate your help.

massplumber2008 · May 27, 2010, 10:08 AM

Glad to help!