I am trying to replace my kitchen faucet and have encountered a nut that I don’t know how to get at. As you can see the nut is bounded by counter (green) on one side and sink (red) on the other. I’ve tried various wrenches but can’t seem to get them in there. What’s the right way to get this thing off?
The pipe that it’s on is about 2.5 inches long.
What you want is a basin wrench:
(Source)
The left end pivots so you can reach up under the sink and access the nut.
That said, you have some serious corrosion going on there. You might have to go with destructive methods, perhaps involving grinding off the top of the faucet.
You could use a box spanner, the pipe will go up the body of the spanner and the pin used to turn the spanner is not fixed.
I have used basin wrenches ( I know them as tap wrenches ) but sometime get frustrated with them!
File a bit of steel pipe so that you have two pins that match the notches in the nut - this will lengthen the nut to a point where you can apply normal tools.
