I'm trying to remove a very old, leaky faucet from a pedestal sink, prior to installing a new faucet. After much effort and contortion, I've got all the pieces off except the spout, which is held in place by a mounting nut under the sink. There's exremely limited space under there, most of it blocked by the spout-T. I can maneuver my adjustable wrench, by holding it nearly vertically, such that it would grasp two opposing sides of the nut if it (the wrench) could open wide enough!
Should I get a larger adjustable wrench? Does some other tool exist to solve this problem? Or must I do what I really, really, really don't want to do: remove the sink from the wall and from the drainpipe before I can get the old spout off the sink? (For that matter, will I have to remove the sink to install the new faucet anyway?) Many thanks in advance.