Re: Replacing copper drains
Any time when dissimilar materials are joined with cast iron ( CI ) a transition coupler is used .
Originally Posted by Jack02
Here is a link that generally describes what those are and how to make the connection .... http://www.rd.com/19566/article19566.html
Being sight unseen ........ If you only have a 1/4 inch of the cast iron pipe sticking out of the concrete then you will likely need to carefully break the concrete around the pipe exposing enough to fit the coupler.
Either the white PVC or the black ABS are equally as good and usually are a regional preferance .... around here ABS is pretty much exclusively used.
2) What is the better plastic product to use?
With PVC you need to use a primer/cleaner on all joints before applying the adesive which is a 2 step process.
Whereas the ABS doesn't require any primer ..... simply apply the adhesive .... 1 step process which makes it easier to use.
Hope this helps.
"" an ounce of perception -- a pound of obscure "