Turn Water Off Under Sink

How to Turn Off the Water Supply Under Your Sink

Leaks under the sink can be a significant source of frustration, leading to water damage and potential mold growth. Identifying the source of the leak is crucial, but before you can address the problem, you need to know how to turn off the water supply to the sink. This process is essential to prevent further damage and ensure a safe and controlled environment for repairs. This guide will walk you through the steps involved in turning off the water supply under your sink.

1. Locate the Shut-Off Valve

The first step is to locate the shut-off valve that controls the water flow to your sink. This valve is typically found under the sink, usually near the drainpipe. You will need to identify two types of valves: the main water shut-off valve and the individual valves for hot and cold water.

The main water shut-off valve is a larger valve, often located near the wall, and controls the water flow to the entire house. This valve is essential in case of major leaks or emergencies. The individual valves for hot and cold water are usually smaller and located closer to the sink. They control the water flow to the specific faucet.

2. Identify the Valve Type

There are two main types of shut-off valves: gate valves and ball valves.

Gate valves

are typically older valves with a long handle that rotates perpendicular to the pipe. To turn off the water flow, you need to turn the handle clockwise until it stops.

Ball valves

have a lever-shaped handle that rotates a quarter turn to open and close the valve. To turn off the water flow, you need to rotate the lever clockwise until it stops.

3. Turn Off the Water Supply

Once you have identified the shut-off valves, slowly turn them clockwise until they stop. This will shut off the water supply to the sink. It is important to turn the valves slowly to avoid any sudden pressure changes that could potentially damage the pipes. Listen for the water flow to stop in the pipes.

4. Verify Water is Off

After turning off the valves, it is essential to verify that the water is indeed off. Turn on the faucet to check if any water is flowing. If water is still flowing, continue turning the valves clockwise until the water flow stops. If the water flow does not stop, there may be a problem with the valve itself, and you may need to consult a plumber.

5. Addressing the Leak

Once the water supply is turned off, you can safely address the leak. Inspect the plumbing under the sink, identify the source of the leak, and proceed with the necessary repairs. Remember to turn the water back on slowly after completing the repairs and check for any leaks.

Turning off the water supply to your sink is a crucial step in addressing any leaks or plumbing problems. By understanding the process and following these simple steps, you can safely and effectively manage your water supply and ensure a leak-free environment in your home.