Help with toilet valve

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Habs_fan

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I am replacing the old toilet in my condo with a new one. Condo was built in ’01. The previous toilet valve shutoff was soddered on to the copper pipe but wasn’t totally shutting off the water so need a new shut-off valve installed.


1st attempt:
Cut the soddered shutoff with my angle grinder & installed a Sharkbite. Turn water back on to condo but had a drip…drip..drip coming from where the copper met the insert hole of the Sharkbite. Thought maybe it wasn’t in far enough so tried everything I could to push it further & same issue.


2nd attempt
Cut off the Shark using angle grinder & tried a second Shark…same issue.


3rd attempt
Cut off Shark using actual pipe cutter – cut was very clean and even. Used plumber sandpaper to clean off the cut and ensure no burrs, etc. This time I installed a multi-turn valve like the following: https://www.homedepot.com/p/BrassCr...et-Multi-Turn-Angle-Valve-OCR19X-C1/202047058

After tightening I am finding its not very tight around the copper pipe and I can basically pull the entire valve off. Is the issue that I am not tightening tight enough? Is it possible the copper pipe is smaller than ½”?


I am literally loosing sleep over this thing
 
Use two large vise grips and tighten the compression nuts as tight as you can. The only thing I would of done differently is get a quarter turn shut off valve. Multi turn valves can leak a lot easier. Also shark bites are nice but can leak.
 
Call a plumber. He/she will do the job correctly and warranty the work. Shark bites are not a good s9lution.
 
Make sure the brass ferrule is under the compression nut. If you are tightening the nut and the valve comes off
then the ferrule is not in there.
 
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