Turn On Water and Check for Leaks

What happens here

Once all plumbing connections are secure, slowly turn the hot and cold water supply valves back on by rotating them counter-clockwise until fully open. Then, operate the new faucet, checking for proper water flow from both the main spout and the pull-down sprayer, and ensuring correct hot and cold water mixing. While the water is running, and especially after turning it off, meticulously inspect every new connection point under the sink. This includes the hot and cold supply lines, the sprayer hose connections, and all drain pipe joints. Look and feel for any drips or moisture, confirming a leak-free installation.

Goal: Restore water supply to the faucet, test its functionality, and thoroughly inspect all new connections for leaks.