I have a pipe in the crawlspace under my house that I need to cap (it goes to an old storage room that I'm going to demolish and re-build). The pipe has a joint or coupling shown below that I'd like to undo and cap:
My questions are:
(1) Is this just a normal pipe coupling? I'm not familiar with this type of coupling.
(2) Can I just undo this coupling with a couple of wrenches, or does it look like it's been soldered, or is it just pipe dope?
(3) If soldered, what's my best option?
Assuming it's just pipe dope, my plan is to undo the coupling with a pair of crescent wrenches, and then remove the coupling from the pipe by holding the pipe with a pair of vice-grips and unscrewing the coupling with a large crescent wrench. I should then be able to cap the pipe. Is there anything else I should be aware of? Any advice would be appreciated.