Test Faucet Functionality and Check for Leaks

What happens here

Slowly turn on the hot and cold water supply valves under the sink. Allow water to flow through the faucet for a minute or two to flush any air or debris from the lines. Test both hot and cold water temperatures, ensuring proper mixing. Operate the pull-down spray head, checking that it extends smoothly and retracts fully back into the faucet body. Verify that all spray patterns work correctly. Crucially, inspect all connections made under the sink for any signs of leaks. Tighten any leaking connections gently, but do not overtighten.

Goal: Turn on the water supply and thoroughly test the faucet's functions, including hot and cold water flow, spray patterns, pull-down retraction, and check for any leaks at all connection points.