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15.4.1.4.If monitoring fluid is not in the reservoir,call the UST Top Slab coordinator at the Xerxes plant nearest you. /�(by others) 15.4.1.5.If a tank is sloped,the reservoir should be at the high end. Street Box and 15.4.1.6. In a tank with the interstice filled with monitoring fluid, vent Reservoir/ Electrical Hookup Xerxes recommends using a nonmetalic riser pipe in the standpipe (by others) reservoir. Standpipe 15.4.1.7.The monitoring-fluid level may fluctuate during (by others) shipping and may not be at the 3-inch mark. Do not add monitoring fluid until after tank burial is completed and the Sensor Cable monitoring system is set up. Reservoir 15.4.1.8.The monitoring-fluid level in the reservoir will rise Sensor naturally under various conditions: Monitoring-Fluid Level • preinstallation air test, Tank Rib • rise in groundwater level, (cut away for • backfill compaction, sensor placement) • product loading, ( �f • product temperature variation. FIGURE 15-2 15.4.1.9.Check and record the monitoring-fluid level during the 15.4.3.3. If the tank is between empty and 1/4 full, set the installation process.(See Tank Installation Checklist.) monitoring-fluid level at about 1-1 1/2 inches below the midpoint of the two points. 15.4.1.10.Any monitoring-fluid leaks will be detected during the preinstallation air test. (See SECTION 3.) 15.4.3.4. If the product level is between 1/4 and 1/2 full,set the monitoring-fluid to the midpoint of the two points. 15.4.1.11.Do not attempt to set the finished monitoring-fluid level until backfill and ballast is completed. 15.4.3.5. If the product level is between 112 full and full,set the monitoring-fluid level to about 1-1 1/2 inches above the midpoint 15.4.2.ELECTRONIC MONITORING of the two points. 15.4.2.1.The system also provides the ability to use an 15.4.4.TRUCHEK® electronic reservoir-fluid-level monitoring system. 15.4.4.1. If a TRUCHEK®is required after installation,follow the 15.4.2.2.The monitoring-fluid reservoir sensor has two points, procedures in separate Xerxes document on TRUCHEK®. which sense either high or low monitoring-fluid levels. 15.4.4.2.After this test,reset the monitoring-fluid level to a position based on the product level. 15.4.2.3.This process includes setting the monitoring-fluid level at a level mid-point between the sensors.This is determined by measuring the product or liquid level within the tank and then setting the monitoring-fluid level. (See SECTION 15.4.3.) 16.1. GENERAL 16.1.1.The ACR is a termination point for secondary piping 15.4.2.4.The level of the monitoring fluid may fluctuate due to systems. It is designed to be monitored continuously for leaks such things as: using electronic sensors.Consult federal,state and local codes • groundwater fluctuation, and regulations to ensure proper monitoring compliance. • tank filling and emptying, ACAUTION • product temperature variation. Failure to follow these instructions may cause water-seal 15.4.3. PROBE INSTALLATION failure, personal injury or property damage. 15.4.3.1.If the tank contains product,stick the tank and set the monitoring-fluid level based on the product level. (See Points ACAUTION 15.4.3.3., 15.4.3.4.and 15.4.3.5.) • Always wear gloves when handling ACR components. • Always wear eye protection when grinding, cutting and 15.4.3.2.The sensor must remain in contact with the tank top at attaching the sump unit. all times. Do not raise the sensor off the tank to meet the • Read and follow all safety and application instructions monitoring-fluid level.Add or remove monitoring fluid to change on adhesive/sealant packaging. the level on the sensor. (See FIGURE 15-2.) Failure to follow this caution may result in personal injury or property damage. 20