How To Shut Off A Mains Water Supply

In the first post on my blog and going to run through properly the most important task for any homeowner. This is understanding how to shut off your mains water. The reason being is that the majority of all damage caused from faulty plumbing is usually down to the house owners not being able to turn off the water fast enough. So in this blog are going to show you how to find a water shut off valve.

As you may expect the vast amount of plumbing problems will require you to turn off your mains water supply. But can you honestly say that you know exactly where your homes main water shut-off valve is located.

How To Locate Your Main Water Shut Off Valve

Many people do not realise is that your mains water shut-off valve could actually be located either inside or outside your property. First of all we going to check the outside of the property to look for the valve. If you’re valve is located outside then it will nearly always be on the ground and near the street. These is where to look for is look through small rectangular metal cover. There’s a good chance it could actually be labelled water meter or with a large W. This should help you to identify straight away. If you pop this cover then underneath will be your mains shut-off valve.

If you cannot locate the shut-off out outside then it is now time to search the inside and out. Depending on the type of property you have will dictate where water shut-off valve will be located. If your house has a basement or even a crawl space then the chances are the shut-off valve will be somewhere in their but more often than not it will be towards the front side of the house.

If you still cannot find your mains shut-off valve then do not plan any plumbing work until you found it. Even if you do require the help of a professional, just to locate the valve is extremely important.


Shutting Off Your Mains Water Supply

Assuming that you have actually found your mains water supply valve we will now describe exactly how you turn off the water to your property.

If you’re valve is internally located then it’s properly slightly easier to turn off than one that is located outside the property. From internally located valve you should not need any tools but simply turn the valve by hand. To turn the water off with this valve turn it in a clockwise direction until it will not turn any further. Providing you have the right valve then all water should now be shut-off to the property.

If you’re valve is located outside then a small tools may be required. Main tool will be used to open the cover on the floor that is hiding the mains water valve. You may well need an adjustable wrench or a meter key in order to seal the flow from an underground valve. Although they are buried underground externally-based valves are more prone to the elements. This means that although it may look in good condition it may well be extremely difficult to move. Again however, you should use a clockwise motion to turn off the water.

Turning Off Minor Water Valves

a split pipe usually requires you to turn off the mains water. However, if you have a problem such as a small drip from an individual unit such as a toilet or sink then you may well be able to close off water to the individual unit through a secondary shut-off valve. These are connected to the appliance near to the water inlet. You will usually need a flathead screwdriver and turn clockwise until the flow water stops. Once you turn off the secondary shut-off valve then the system still need to be drained. For instance, if you’re working on a toilet then flush the toilet and if the water is currently sealed off then the cistern will not refill. If you are working on a sink or bath, then simply open the water taps and there any excess water drain off once the water stops you know your water is correctly sealed off.

They are the very basics of closing off a water supply to a home. However, if you are unsure of anything mentioned here than it is always advisable to call a professional, to come and do the job for you. Remember water damage can be extremely expensive if the flow is not stopped very quickly.

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