I am trying to replace the faucet and valves in my bathroom sink, but I can't figure out how to remove the old valves.
This is what the valve looks like above the sink.
This is what the valve looks like below the sink.
I can screw the red collar up and down. I can also turn the handle a quarter turn. Other than that, everything seems to be fused into one piece. When I wrench on anything, the whole assembly just spins around in the hole.
I suppose I could try to clamp the part above the sink, then turn the part below the sink with a wrench, but I'm not sure that will work, and I don't know how I can possibly get a good grip on the part above the sink anyway.
I don't mind wrecking the old valve. I could maybe take a hacksaw to it, but there must be a better way.
P.S. I've read several other posts on this forum about how to remove a valve, but every situation seems to be different!