Connecting PVC to cast iron drain

[AaronJS]

I'm seriously thinking of adding a half bath to the main floor of my
house. All the necessary plumbing is located in the perfect area.
My only delemma is that I'm not too sure how to attach new PVC to
an old cast iron drain pipe at a right angle. It's very accessable
in the crawl space, about 4 ft of it, but I could use some help as
to the best way to tap into it with a new PVC drain line.

[LazyPup]

You can cut out a section of the cast iron pipe and replace it with PVC of the appropriate size, installing a Sanitary tee in the PVC to allow your tap.
The preferred method is to cut the cast iron pipe below a hub then remove the cast from the next lower hub. You can then put the bottom end of the PVC into the hub and seal with a rubber hub adapter or use PLUMBERS EPOXY to fill the joint the same way they used to do with lead and oakum. Then attach the new PVC to the cast with a FERNCO cast x PVC adapter.

[AaronJS]

quote:Originally posted by LazyPup

You can cut out a section of the cast iron pipe and replace it with PVC of the appropriate size, installing a Sanitary tee in the PVC to allow your tap.
The preferred method is to cut the cast iron pipe below a hub then remove the cast from the next lower hub. You can then put the bottom end of the PVC into the hub and seal with a rubber hub adapter or use PLUMBERS EPOXY to fill the joint the same way they used to do with lead and oakum. Then attach the new PVC to the cast with a FERNCO cast x PVC adapter.

Thanks for the info LazyPup, it's been a while since I first posted
my request, and the bathroom is all done. Tapping into the cast
iron turned out relatively easy, and everything works great. I'll
send a picture is anyone is interested.

[seamlyne]

quote:Originally posted by AaronJS

quote:Originally posted by LazyPup

You can cut out a section of the cast iron pipe and replace it with PVC of the appropriate size, installing a Sanitary tee in the PVC to allow your tap.
The preferred method is to cut the cast iron pipe below a hub then remove the cast from the next lower hub. You can then put the bottom end of the PVC into the hub and seal with a rubber hub adapter or use PLUMBERS EPOXY to fill the joint the same way they used to do with lead and oakum. Then attach the new PVC to the cast with a FERNCO cast x PVC adapter.

Thanks for the info LazyPup, it's been a while since I first posted
my request, and the bathroom is all done. Tapping into the cast
iron turned out relatively easy, and everything works great. I'll
send a picture is anyone is interested.

I would be VERY interested in seeing that. I'm moving a washing machine to the basement, and have two choices for draining it: into a cast iron stack that I know is vented properly; or into a drain in the floor that I have no idea where it goes or if it's vented (although it drains well, even with a lot of water flowing into it).

Thanks!