Step1
Go to every faucet, hose bib, and shower in and outside of the house, and make sure that the fixtures are off.
Step2
Tell anyone who is home to not use any water while you do your test. It is important to include your dishwasher, washer machine and refrigerator ice maker when you ask everyone not to use the water. In fact, its best to do this test when there is not anyone else home if possible.
Step3
While you are shutting off all your fixtures, make sure that there are not any drippy faucets, and that your toilets are not making any noise, for this will not allow you to get an accurate reading. If you have a drippy faucet, or noisy toilet you should repair it immediately and do this test afterwards. A noisy toilet is a toilet that is continually making noise when it is not being used.
Step4
After your home has gotten through the first three steps of this test, find the water meter. The water meter is usually located outside in your front yard or curve. If you have an ally behind your house, or easement, you may want to look out there for it.
Step5
Now remove the meter lid and expose the meter so you could see the numbers. (It is very important that you replace the lid to the water meter every time you walk away from it because someone walking bye can step in it and hurt themselves).
Step6
Picture of meter showing the blue triangle that spins when water is used
Check if your meter is moving. You do this by watching the little triangle on the meter. If the triangle is not moving, your house is holding its pressure and no pipes are leaking. If the triangle is spinning, water is still passing through the meter, and it should not be doing so because all your fixtures are shut off.
Step7
Call a plumber so a leak detection can be performed, and so they can pinpoint the leak for you. The rest of the steps are not to be followed by unqualified individuals, for mistakes could be costly. The following steps are for reading purposes only.
Step8
If you do not have a garden sprinkler system read this step anyway. Now if you get to his point there is no need to worry just yet. Think back and make sure you shut off all the hose bibs and fixtures. Your next step is to get a better idea of where your leak is at. You do this by locating what is called your building shut off valve. This is almost always located in your front yard right before the water line goes into the house, if the meter is in the front yard or curve. If your meter is in the back yard, or ally way, check the back of your house, and you should find a pipe coming out of the ground and into your house. There, you will find the valve that shuts of the water to your house. If you have a garden sprinkler system, there will be two valves there or there should be. Shut the valve to your garden's sprinkle system off. If the valve to your sprinkler system is not there, find it and turn it off. If you don't have one, you really should install one. Now check the meter. If it stops moving after you shut off the valve to the pipes that feed your sprinkler system, you have a problem in your sprinkler system. This usually means a broken pipe, or that water is getting through your anti-siphon sprinkler valves. If the meter continues moving leave the valve off and jump to the next step.
Step9
Now shut off the valve that shuts off the water to you whole house, which is the building water shut off, and not the valve in the meter box. What you are doing here is isolating a water system. You are checking for leaks between your meter and your building. So the meter is on and your house faucets have no hot or cold water. Check the meter again, if the meter is still moving you have a leak in the line between the meter and the building shut off. If it does not stop, go to the next step.
Step10
Turn on the building shut off valve to your house only. This will get water to your house system and pressurize it again, give it about 10 minutes to refill the pipes. In the meantime, go through your house sink faucets, and turn off all the angle stops which are located in your sink cabinets. You are just double checking yourself at this point. By the time you are done shutting off all the angle stops to your sink faucets, the system is full usually. Also, shut off the valves to your washer machine hot and cold water, and the refrigerator water line if you have and ice maker. Check your meter again. If the meter is stopped at this point you have a problem somewhere between your shut offs and your faucets.
Step11
This is the final step I could share with you. Go to your water heater and turn off the cold valve. The cold water line feeds the right inlet to the water heater and is marked with a "C" for cold. Now you are isolating the hot from the cold. If the meter stops at this point there is obviously a problem with your hot water system. If it does not stop there is a problem with the cold water system. At this point, there is a possibility for a slab leak in your under ground water lines, you should call a plumber.
Comments
Plumbing said
on 5/15/2008 Simple and easy to guide to help discover leaks. Well done!
jdplumbers said
on 5/12/2008 If you have an unmetered source of water this procedure could only assist you to a certain point. However, put in a request for a how to and I'll write up a simple way for you.
Jesse
Farmgirl said
on 5/9/2008 How does this procedure work if you have an unmetered well source of supply?
Mariaeugenia said
on 5/7/2008 Wonderful article thank you for the tips.
HardworkinJudy said
on 5/7/2008 Great tips, now for an inexpensive plumber.