The purpose of a shut-off valve at each fixture branch connection (sinks, toilets, dishwasher, and washing machine) is to control the flow of water to that specific fixture. These shut-off valves are also commonly referred to as supply stops or angle stops. They serve several important functions:
Isolation and Control: Shut-off valves allow you to isolate the water supply to a specific fixture without affecting the rest of the water supply in the building. If there's a need for repairs, maintenance, or replacement of a fixture, you can shut off the water supply to that particular fixture without disrupting the entire water system.
Emergency Shut-Off: In case of a plumbing emergency, such as a burst pipe or a severe leak at a fixture, having a shut-off valve allows you to quickly and easily stop the water flow to minimize potential water damage.
Routine Maintenance: Shut-off valves are handy during routine maintenance tasks like replacing faucets, fixing leaks, or installing new fixtures. They make it convenient to turn off the water supply locally without affecting other areas of the plumbing system.
Water Conservation: Shut-off valves enable you to turn off the water supply to a fixture when it's not in use, helping to conserve water and reduce wastage.
Preventing Water Damage: If a fixture develops a sudden leak, having a shut-off valve nearby allows you to promptly stop the water flow, preventing extensive water damage to your home.
Convenience: Shut-off valves offer convenience for minor repairs or adjustments that you might want to handle on your own without the need to involve a plumber.
It's essential to know the location of these shut-off valves in your home and ensure they are in good working condition. Regularly check and exercise them to make sure they operate smoothly when needed. If you encounter any issues with a shut-off valve, such as it being stuck or leaking, it's a good idea to have it repaired or replaced to maintain proper control over your plumbing system.