Method of confirming the presence of a leak in a liquid storage

Details Method of confirming the presence of a leak in a liquid storage Method of confirming the presence of a leak in a liquid storage

1993-05-20

1994-06-14

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

73 492, G01M 324

Patent

active

053199561

ABSTRACT:
Method of confirming the presence or absence of leaks in a liquid storage container, particularly in partially filled underground storage tanks, subjected to partial vacuum for the purpose of testing the tank for the presence of a leak in the area above the liquid using a hydrophone or microphone either positioned in or attached to the container to detect the sound produced by the ingress of fluid into the container as a result of the vacuum. The ingress of fluid is confirmed by recording and observing the vacuum pump on/off cycles, the on/off cycles for a leaking container being distinguishable from the on/off cycles for a non-leaking container.

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