The first indicator is the presence of water or damp spots on your floor.
How to find a leak under concrete floor.
Acoustic listening and correlators these are very sensitive microphones that are clamped onto the pipe and listen for the noise of escaping water.
Check if your hot water heater is always on.
Then let s move on to how you can try to determine where the leak is in your home s plumbing.
It s important to ensure that your faucets are in top notch shape and aren t leaking water into the ground or other places where it s not helpful.
Put the dye in the drain and then filling the drain up with water.
Tracer gas can be particularly useful when trying to find a water leak under a concrete floor or slab.
This video shows you how to find a fix a broken water pipe under the slab in a basement.
Make sure you remove the bung after completing the test.
Sudden presence of mold mildew in walls or under carpet.
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.
If you are trying to find a water leak under a floor this is very helpful.
Walking around with bare feet inside your home can help you identify the location of any lines that are leaking because you ll feel the heat through the floor.
Because hot water is constantly escaping your heater is working overtime to warm up the new water.
You can check whether the leak is coming from a fault in your surface drain by using a bag of drains testing dye that you can buy from your local builders merchants.
In certain circumstances the correlators can be used to calculate the exact position of the leak along a given length of pipe.
Areas of the floor that are suddenly warm if you have pets they may suddenly prefer to sit in these warm spots see the signs of a concrete slab.
I did not want to use a grinder or a saw to cut through the concret.
Test for a leak.
There s no conclusive exhaustive way to detect water leak under concrete since the nature and severity of the leak can vary greatly from case to case.