Restore Water Supply and Check for Leaks

What happens here

Once both ends of the new supply line are securely tightened, slowly turn the angle stop valve clockwise ('righty tighty') to gradually restore the water supply to the faucet. Monitor both connections (at the faucet and the angle stop) closely for any drips or signs of leakage. If leaks are present, turn off the water, tighten the connection a quarter turn more, and re-check.

Goal: Slowly open the angle stop valve to restore water flow and carefully inspect all connections for any signs of leaks.