Image of a Water Puddle Squeegee for bare liner leak location. Water is being sprayed in front of the blue squeegee, and the squeegee spreads the water evenly across the liner. When the water comes in contact with a hole, current flows through the hole to the ground.

Water with an induced electric current is sprayed onto the liner’s surface. When the water from the leak detector flows through a hole in the liner, the induced electrical current flows through the water along the liner’s surface through the breach and to the ground completing a circuit—an audible tone alerts the operator to the hole.