Although water travels in the path of least resistance if the soggy spot is nowhere near your main water line there s a good chance the leak.
Water leak outside house.
Turn off all water flow into your house and then see if the water meter is still reading a flow of water.
While your bill may not be exactly the same every month chances are that it generally stays within a certain range.
Turn off the main water valve of the house and look at the meter.
The most telling signs of a leak in the main water line are.
If it is moving the leak is between the valve and the meter or outside.
How to test for a main water line leak.
You will need to determine whether the leak is coming from your main water service to the house or your irrigation system.
Did you find some water.
Examine the meter to determine that it is truly an outside leak.
Water can drain along the outside of pipes in your walls or trickle many feet down the inside of your walls before the telltale signs of a leak become visible.
Both a utility knife and a drywall saw can be purchased at your local hardware store.
Signs of a water leak.
Exterior below grade issues.
If it is not moving the leak is inside the house.
If your leak is coming through at the lower level you may have exterior below grade issues.
Testing for a main water line leak follows simple logic.
One of the first places to look for signs of a leak outside your home is your water bill.
Water surfacing in the front yard.