A definitive way to test for a sewer line leak outside the foundation wall is to do a sewer dye test.
Water line leak test.
A sewer dye test is performed by removing the cap from the house side of the sewer trap click this link to learn about a sewer trap and the proper way to open it.
If the water meter test indicates a leak inside your home check the cabinets under the kitchen laundry and bathroom sinks to make sure they re dry.
Acoustic water leak detection.
So you can check your water meter for signs of a leak turn off every faucet in your house and make sure common water appliances like your washing machine and dishwasher are not on.
On almost all buildings in nyc there is a water meter that has a valve on the street side and the house side of the meter as that is the code.
Leaking water service line testing accurately for a main water line leak is usually fairly simple and it involves no special skills or tools.
Water traveling through pipes makes distinct noises.
If it does you have a leak in your main water line.
Turn off all water flow into your house and then see if the water meter is still reading a flow of water.
The sounds leaking water makes in a water line are the key to finding an underground leak.
Test all the joints in this manner to ensure you find all the.
Testing for a main water line leak follows simple logic.
Where the solution bubbles there is a leak.
Splashing indicates that water is flowing around the outside of the pipe.
Digging for leak another common sign is a rumbling or hissing noise coming from the water main at the point of where the pipe enters the house.
The only time you should hear a noise on your water main is when water is being used in the house.
Then place some food or clothing dye into the open sewer trap.
Learn the different sounds water pipes make so you can find the source of your water line leak.
Testing for a water leak 1 turn off your faucets and other water appliances.
You ll also want to look for puddles around.
Put soap in water stirring gently and rub it onto each of the pipe joints one at a time.