I need to connect some PVC to castiron. The castiron is 4" and the hubs were sealed with a rubber gasket. After pulling out the existing CI and the rubber seal, I used a Fernco PlumbQwik connector to put in 4" PVC. The connection seemed tight, although it could have been tighter. I decided to change to 3" PVC ( it is going down to 2" for a shower drain ). I got a PlumbQuick 4" to 3" donut. I put it over the 3" PVC ( very tight ), then I went to put it into the castiron Hub and it is totally loose, just slips right in and out.
Is my castiron non standard? Any ideas ?
Thanks,
Ron
Is my castiron non standard? Any ideas ?
Thanks,
Ron