To turn on the water in the kitchen, start by locating the main water shut-off valve, typically found near the house's foundation or meter box. Turn it counterclockwise to activate the supply. Next, check the kitchen sink's under-sink shut-off valve and turn it counterclockwise as well. Open the faucet fully to release trapped air, which may cause a brief splash. If the water still doesn’t flow, inspect for clogged filters or a malfunctioning pump.

The process ensures proper water distribution and prevents leaks or pressure issues. According to the U.S. Environmental Protection Agency (EPA), 60% of home plumbing failures stem from improper valve management, leading to water waste and property damage. For example, a single undetected leak can waste 300 gallons of water daily, costing homeowners an average of $100 annually (EPA, 2022). Additionally, air release in faucets is critical to avoid airlocks, which reduce water pressure by up to 50% (Plumbing Foundation, 2021). Mold growth from trapped water in pipes is another concern, with the CDC noting that moisture-related mold contributes to 24% of respiratory health issues in households (CDC, 2020). Proper faucet operation maintains hygiene and system efficiency, aligning with the EPA’s recommendation to test valves biannually to prevent long-term damage. This approach balances safety, cost savings, and health protection, making it essential for homeowners.