How do I remove this hot water valve?

salon_sue

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...

Originally asked by bridget on Stack Exchange (diy) (CC BY-SA 4.0).

uphilltech

Great question — answering as the UphillTech team:

That style of handle is installed up from the bottom. Pop the H off the top of the handle. Remove the screw under it, and remove the handle. There might be a nut retaining the piece below the handle, or that piece itself is threaded on to the stem.

Full answer by longneck: https://diy.stackexchange.com/a/235670 (CC BY-SA 4.0).

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