The purpose of a shut-off valve at each fixture branch connection, such as sinks, toilets, dishwasher, and washing machine, is to provide localized control over the water supply to each individual fixture. These shut-off valves, also known as angle stops or angle valves, serve several important functions:
Emergency Water Control: In case of a plumbing emergency or a fixture malfunction (e.g., a leaking sink or a burst washing machine hose), the shut-off valve allows you to quickly turn off the water supply to that specific fixture without disrupting the water flow to the entire house. This prevents extensive water damage and gives you time to address the issue without rushing to shut off the main water supply.
Fixture Maintenance and Repairs: When you need to perform maintenance, repairs, or replacements on a particular fixture, the shut-off valve allows you to isolate that fixture from the rest of the plumbing system. This eliminates the need to shut off water to the entire house, making the process more convenient and less disruptive.
Convenience: Shut-off valves provide a convenient way to temporarily stop the water supply to a fixture without affecting other areas of the house. For example, if you're renovating a bathroom or kitchen, you can close the shut-off valves for the sink and dishwasher while keeping the water supply on in other parts of the house.
Water Conservation: Having individual shut-off valves encourages responsible water usage. If there's a minor leak or dripping faucet, you can quickly stop the water supply to that fixture until it's repaired, saving water in the process.
Easy Fixture Replacement: When you want to replace a fixture, such as a sink or a toilet, having a shut-off valve makes the process smoother. You can shut off the water supply, disconnect the old fixture, and connect the new one without affecting other areas of your home.
Overall, shut-off valves at fixture branch connections offer practicality, control, and protection. They are essential components of a plumbing system, providing peace of mind and allowing homeowners to handle plumbing-related issues efficiently and effectively.