buckyswider
Member
Hi there, replacing a powder room wall-mount sink with a vanity. Previous plumber left me in a bit of a pickle. He converted the 1/2" copper stub (from crawlspace) to 3/8" chrome plated copper right at the subfloor, and ran the chrome all the way to the faucet (no stop valve....GRRRRR). And then the hardwood flooring crew came along so the existing copper/chrome joint is pretty much buried. with only about 3/4" of the coupling (which, oddly, appears to be chrome) above the floorline. Due to some recent HVAC installs in the crawlspace, access to the pipes from underneath is extremely challenging, so I need to figure out how to do this from the top.
Now my issue is how to connect a stop valve to the chrome line. I made a DIY blunder of not knowing/remembering that 1/2" OD is 3/8", so I bought 1/2" compression stop valves- including a cool dual valve for the cold, 3/8" for the sink and 1/4" for the fridge, which connects thru a wall (this is a kitchen powder room).
My plan was to use a 3/8"-1/2" sweat reducer and use the compression fittings on 1/2" copper. However, after about 10 minutes of scrubbing with #150 sanding cloth, all I'm getting is shinier chrome. Is there a better way to do this? Heavier grit? Can I use a sanding head on a multitool? Optionally, is there a way I can transition to 1/2" compression with some sort of 3/8-1/2 compression fittings? Sharkbites apparently also need the chrome removed, so that just puts me in the same boat I am now.
If I could get my hands on the plumber who didn't install a stop valve.....
Thanks!
Now my issue is how to connect a stop valve to the chrome line. I made a DIY blunder of not knowing/remembering that 1/2" OD is 3/8", so I bought 1/2" compression stop valves- including a cool dual valve for the cold, 3/8" for the sink and 1/4" for the fridge, which connects thru a wall (this is a kitchen powder room).
My plan was to use a 3/8"-1/2" sweat reducer and use the compression fittings on 1/2" copper. However, after about 10 minutes of scrubbing with #150 sanding cloth, all I'm getting is shinier chrome. Is there a better way to do this? Heavier grit? Can I use a sanding head on a multitool? Optionally, is there a way I can transition to 1/2" compression with some sort of 3/8-1/2 compression fittings? Sharkbites apparently also need the chrome removed, so that just puts me in the same boat I am now.
If I could get my hands on the plumber who didn't install a stop valve.....
Thanks!