How to Detect Water Leaks

If you think you might have a Water Leak

Locate Your Meter

The meter is often located beneath a manhole-type cover near the street or on the side or back of the house. 

Turn off the Water 

Turn off all water faucets in your home and make sure the washing machine and dishwasher are not running. 

Check Your Meter 

Check the water meter and log the numbers you see. Come back in an hour and check again. If the numbers have changed, there’s a leak somewhere.

Isolate the Leak

To determine if the water leak is in the house or outdoors, turn off the shut-off valve on your home’s main water supply pipe. 

Check Meter Again

Check the water meter, write down the numbers, and wait another hour. When you check again, if the numbers have not changed, the water leak is inside your home. 

How to Read your Water Meter

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Common Places for Leaks

Leaks may be intermittent, meaning they only occur when a water-using device is in operation. Run water-using devices, such as a clothes washer or dishwasher, to see if a leak occurs. 


Toilet leaks are the most common type of leak found inside the home. Because this type of leak can be silent, it may go unnoticed. 

Faucets, Showerheads & Bathtubs

An Annoying, Dripping Sound if often the first sign of a leak. Faucets, showerheads, and bathtubs may also have leaks hidden from view.


Water Trickling steadily out of an irrigation head long after the system has turned off could indicate a leaking or weeping valve below ground.  

Water Supply lines, Valves, & Corrosion

Look for Continuous leaks in supply lines, fittings, and valves. Also, look for leaks caused by corrosion, such as rusty a rusty water heater tank bottom.