If there are no other signs of a slab leak look for indications that the water heater itself is broken such as muddy water or loud cracks coming from the tank.
How to find water leak in concrete wall.
Water stains that run downwards from the basement ceiling require the services of a professional plumber who can easily detect a water leak under concrete or above it as the case might be.
If you caught it in time you can see water running down the wall and into your garage.
Use a utility knife to score a line about 10 inches 25 cm long into your drywall at the location where you see visible signs of a water leak mold discolored drywall etc.
To determine if the leak is coming from defective plumbing turn off all faucets and appliances that use water in your home and write down the number on the water meter.
If it s moved at all during that time you probably have a leak somewhere.
If the amount of water used increases that s a good sign the leak is coming from indoor plumbing.
Look for the source of the water penetrating the concrete wall.
To find slab leaks in concrete or detect malfunctioning radiant heating systems you ll want to invest in a thermal imaging camera with a high resolution and thermal sensitivity as well as with the ability so adjust your level and span.
Cut into your drywall to find the source of a leak.
This is the challenge.
Because hot water is constantly escaping your heater is working overtime to warm up the new water.
It s not only the concrete paths and patios that you need to look for since many homes have concrete walled basements.
This is usually caused by a leak somewhere.
It can be anywhere from the roof to the windows.
If your hot water heater is running most if not all of the time it may indicate that you have a hot water leak under your concrete.
In order to solve water leaking into the garage under the wall you have to find the source of.
Water leaking into the garage under the wall.
Then using a drywall saw cut along the line you just scored.
Check whether a gutter or downspout is leaking into an above grade wall.