The location of your shut-off valve can vary depending on the specific plumbing work, and while every building is different, shut-off valves are most commonly found:

• On or near visible pipes that enter the building.
• Behind appliances that use water (refrigerator, dishwasher, toilet, etc.).
• Under the sinks in kitchens and bathrooms.
• By the main water meter.

Different Types of Shut-Off Valves

Various types of shut-off valves can be used in different plumbing systems, each with its own set of advantages. Here are some of the most common types of shut-off valves:

• Ball Valves: These are popular for their ease of use and durability. They feature a ball with a hole in the center that controls water flow. A quarter turn of the handle positions the hole to allow or block water flow.
• Gate Valves: These valves utilize a gate that slides up and down to open or close. They are suitable for completely stopping water flow and are often used in main water lines. However, they require multiple turns to operate.
• Globe Valves: These have an internal mechanism that regulates water flow with a screw-like action. They offer good flow control and are sometimes used to isolate fixtures for maintenance.
• Check Valves: These valves allow water flow in one direction only and prevent backflow. They are commonly used in appliances like washing machines and dishwashers to prevent water from flowing back into the house’s main water supply.
• Butterfly Valves: These valves use a disc-shaped plate that rotates to control flow. They are not ideal for regulating flow rates but can be useful for quick shut-off applications.

 

In addition to the valves listed above, specialty valves like angle stop valves used at fixture connections and compression stop valves used with copper pipes are also available. The best type of shut-off valve for a particular application depends on factors like water pressure, flow requirements, and desired level of control.

If you’re experiencing troubles with your shut-off valves or they’re not working at all, contact the plumbers at Blake Brothers for shut-off valve repairs in Huntsville, Decatur, and Athens, Alabama.