We have a 80 year old house that had cast iron sewer pipe connected to clay pipe as it exited the house. We replaced the cast iron with PVC and need to connect it to the clay pipe. Has anyone ever done this before? Is there a method for successfully connecting the PVC to the clay pipe. This connection will be outside the house underground. Thanks for any help.
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there may well be some technologically advanced means of doing it, but I just but them up and pour a little concrete around the joint...
Fernco make a fitting for that. Any plumbing supply house or good hardware store will have it.
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Hi Chuck I have had to do that once and the plumbing supply house had a rubber fitting with compression clamps for it. About $30 though. .........rik........
Butt 'em up or slide the PVC (preferred) into the clay pipe and seal with hydraulic cement.
You may find your clay pipe a bit fragile.
Who ever invented work didn't know how to fish....
I did this using a rubber coupling from the plumbing supply. I think it is the same coupling that is used to go from cast iron to PVC - not sure though. The one I used was black rubber and had 2 hose clamps. They are basically adapters, so they come in different sizes on one end and the other ie: 5" to 4".
Here is a pic similar to what I used:
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Once you make whatever connection you are going with, I suggest, purchasing some rock salt, or water conditioning salt, at the grocery store for about $3.00, and pour/place, a solid line around entire joint, it will discourage root growth.Though, it sounds like to me, with your clay pipe you have a cold joint every 3', but I would still salt any joint that is visible. Jim J
There is a rubber coupling made for exactly this purpose. It is by far the best way to do the task at hand. Do it right or weep.