Hi I was wondering I have a 4 in cast iron that has a hole in it and I need to replace with pvc what would I do to replace I know some what about plumbing I just don't know anything about cast iron

Open the link below will give you an idea, Thanks.

John

https://www.askmehelpdesk.com/plumbing/cast-iron-vertical-cast-iron-horizontal-can-pvc-258134.html

What has the hole? A fitting or a pipe? If a fitting what is it and if it's a pipe is it vertical or horizontal? Please give us something to work with here? Regards, Ton