This Leak Detector is used on the soil covering on a newly laid geomembrane in a landfill site. Damage can be caused to the geomembrane by the heavy earth moving machinery during construction. This is a cost effective method of leak location minimizing the amount of material which must be removed to effect a repair.
The method of surveying is to apply a high voltage between the inner soil and the ground outside the liner.
This technique is capable of finding holes as small as 3mm in geomembrane with about 0.5m of soil covering. The high voltage power unit supplies up to 700 Volts which
can inject current into all but the driest soil.