On the front yard-side of the house, you will find the main shut-off valve under the water hose connection. This valve will shut down the whole-house water supply. Sometimes the main shut-off valve is in the same area above, just buried in the ground.
If the previous methods fail, there could be another valve located at the beginning of your water main, at the boundary line of your property and the street or sidewalk, called a curb valve.
Look for a rectangular or round cover that will be near the edge of your property, often between the curb and the sidewalk. Some water main valves are located along an alley, rather than the street. The cover may be metal or plastic, and it might say “water meter” to help with identification.
Curb stop service valves control the water running to a home or building from the City's water main. Curb stops are usually located outside in the front yard of a property (for example: on the front lawn, driveway, or private sidewalk) on the border of public and private property and are owned by the City.
The name is actually quite literal. It's a valve that relieves excess pressure in the water heater tank. By doing so, it can prevent excess pressure buildup that has the potential to cause a tank burst and flood your home.
Control valves ensure pressure management in the supply network. Automatic control valves are used to obtain efficient pressure and flow management resulting in: Reduced water loss through leakages. Reduced risk of water hammer and pipe bursts.
Your outside stop valve is normally located under a cover on the path or the road. It can also be: In the same area as your water meter. At the end of your road.
The shut off valve or isolating valve for an outside tap is usually right next to the where to water supply pipe is going through the wall to outside. All outside taps shut have it's shut off valve but not all outside do.
For homes built on a slab, check in the garage or near your water heater. The incoming water line usually comes through the foundation near the front side of your house. Follow this line up to the water meter. Just past the meter should be the main water shut-off valve, a red or green handle or knob.
Every home has two main water shutoff valves: one inside the house and the other by where your property meets the street. The simplest way to shut off all water running through your house is to know where the main valve is located inside your house.
Supply stop valves, also called shut-off valves, are designed to stop the flow from a water supply. While most water valves can do this, stop valves provide easy shut-off mechanisms to allow people to find a leak near fixtures or when doing other plumbing work, without shutting off the water supply to the entire house.
"There is no downside to turning off the water. It takes a little bit of time, and it can save thousands of dollars in potential water damage."
If your outside tap won't turn off then it's probably a washer or damaged tap problem. Unless you have the correct spare washers, you should buy a new outside bib tap and just replace it, it's a very simple job.
The most common reasons why a tap won't turn off are: The tap handle is stripped. The tap needs a new washer. The valve is broken.
Exterior faucets should have a separate shutoff valve inside the house, but not all of them do. In older homes, these valves are typically located at the ceiling somewhere close to the outside faucet. In newer homes, the valves are typically located right next to the main water valve, and they're also usually labeled.
External stop taps are normally found outside your home in the public footpath. They are sometimes located in driveways, gardens or grass verges. Internal stop taps are normally found under the kitchen sink but can also be found under the stairs or in the downstairs toilet.
Stopcocks/stop taps look like a tap , but without the spout. You'll find it between two lengths of pipe, as it's a connecting piece - this allows the stopcock to block the flow of water when it's closed off.
On-off valves and control valves are similar in some senses, but the difference lies in their degrees of control. Where control valves can be very precise, on-off valves can do exactly what their name suggests: turn on or turn off. Each of the different valves has an important place in your system.
Globe valves are named for their spherical body shape with the two halves of the body being separated by an internal baffle. This has an opening that forms a seat onto which a movable plug can be screwed in to close (or shut) the valve. The plug is also called a disc.