A slight negative pressure (vacuum) is applied to the tank system. Air and/or water will be drawn into the tank if a leak exists.  A tank system should not be declared tight if; acoustic signal detected is different from the baseline signal (obtained before vacuum is placed on the tank), OR if water ingress is detected by the water sensor.

A high-tech acoustic microphone is used to determine tank tightness.

1) An acoustic signal that reveals "no" sound, and/or no water intrusion indicates a tight tank.

2) A leak in the ullage (dry) portion of the tank reveals a "hiss" sound.

3) A leak below liquid level (wet) portion of the tank reveals a "bubbling" sound.

If there is ground water above the tank bottom, and a leak exists below the ground water level, water will be drawn into the tank. This gain of water is detected by the water sensor.

EZY 3 Locator Plus can test tanks with 0% to 99% fuel level in tanks up to 30,000 gallon capacity. Ullage volume must be the greater of 1% of tank volume OR 50 gallons.

EZY 3 Locator Plus does not require a temperature stabilization period.

EZY 3 Locator Plus has been third party evaluated and meets or exceeds all US EPA tightness test requirements.

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