Look like the contractor is not skilled enough in doing piping works. I work in HVAC company dealing CHWP and PCWP. Most of the smaller piping connection also used threaded joint and can withstand up to 60-90PSI when pressure test while the actuall running pressure is just around 30-40psi


Copper is soft. Too tight and connection will be become and leak instead. If the pressure is not high maybe can try soldering instead of using threaded types.

This post has been edited by kesvani: Sep 16 2023, 07:31 PM

Should be still can work on such cut out the threaded part and put a short copper pipe and solder both end. Just need to solder two times. If conceal then hailat liao