My house is 1920s, New England. its been upgraded and added onto a few times.
2nd floor toilet shut off was leaking.
I cut off the valve as I was unable to safely get a torch on it to un-solder it.
I shut off hot and cold water to the 2nd floor as the faucet and tub have mixing vales.
The supply ID is 1/2" so I got this 1/2 in. Nominal Compression Inlet x 3/8 in. O.D. Compression Outlet 1/4-Turn Angle Valve
To my horror, the OD of the pipe is 11/16 (maybe brass? older copper?)
As I understand, 1/2" copper is 5/8 OD so my part doesn't fit.
What part(s) do I need to button this back up?