Vent Pipe??

While locating and fixing a leak in our drain line, we came upon what looks like a cut vent line. It seems to be capped (if you want to call it that).They capped it with a piece of flat copper and sodered to the pipe. The pipe is held up by a rusty old nail under the 'cap'. This contraption is now leaking because of extensive corrosion. I believe a new vent line was moved a foot down the line. Before I replace my ceiling drywall, I'd like to take care of this pesky dripper.

If I cut this old vent line, what can I expect? What is the best way to cap it correctly and to secure it?

Are there other suggestions on how to handle this?

Thanks

If it is a vent it should not be leaking. A picture would be more helpful.

I'll get a picture and will post. So, the moisture coming from the pipe can't be condensation like I thought it might be.

Drained said:

I'll get a picture and will post. So, the moisture coming from the pipe can't be condensation like I thought it might be.

Click to expand...

Unlikely. but possible.