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to vent. It is not intended to seal the system, allowing it to build pressure, or to prevent overflow. VI. Completing Installation and Activation The sensors are now ready to be connected to a power supply and energized. Power and panel connections should be made according to the sensor manufacturers' instructions. Installation and activation of this system will fulfill the requirements for continuous monitoring of underground piping. VII. Response to Alarms The reservoir size, diameter and length, and the sensor spacing, are designed to minimize the occurrence of false alarms. Despite this, the first response to an alarm is to test for its validity. If a high level alarm sounds, the reservoir should first be inspected to assure it is not submerged in water from the water table in the soil. If it is, the water should be removed and maintained below the level of the top of the reservoir. If no water is found, brine should be removed from the reservoir until it is at the mid-point between the high and low level alarm points and the system reactivated. Likewise, if a low level alarm sounds, brine should be added to the reservoir to the mid-point of the alarm points and the system reactivated. The time of the adjustment of the reservoir level should be noted. This is to be used as a reference should another alarm sound in a short time frame. If so, this will give the operator an indicator that an actual leak has occurred and give a rough measure of the rate of the leak. By knowing the volume of fluid needed to restore the system and the time between the two alarms, the volume per hour or the leak can be calculated. If no second alarm sounds, the first was likely due to evaporation of the brine or some spillage into the reservoir. The system is designed to minimize evaporation, but some will occur. If a second alarm does sound, this should be considered as confirmation a leak has occurred. If so, the involved line must be removed from service and repaired. Detection equipment, such as helium detectors, can be used to isolate the leak location and identify the site needing repair.