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How do you get this cap off?
This is a 2" cap on the end of the wet return. It's so close to the ground, a piece of cardboard won't slide under it. The rear wall is 12" behind it; the floor beam is only 6" away. There's plenty of room to thread it on, but not enough room to even get the wrench teeth on the cap to remove it.
It needs to come off to flush the return. How do you do it?
1950's Bryant boiler in a 1-pipe steam system at 7,000 ft in northern NM, where basements are rare.