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2 Last Sump in Branch Leg. <br /> Remove Valve Stem until full, <br /> I� Then Replace. <br /> Parallel Pattem. Purge Branch Lines to Dispensers <br /> after Filling Main Lines in Number Sequence Shown <br /> Most Remote Dispenser. <br /> 3 4 Locate Reservoirs Here. <br /> No Termination Sleeve Here <br /> Reservoirs. <br /> Figure 5 Shown in Sump and in-line <br /> with dispenser sumps. <br /> If filling is done by vacuum, vacuum must be used on the remote end of each <br /> main line. Filling still must be done from the low point of the system. The order <br /> of filling of the main lines is not critical. Once the system the vacuum drawn from <br /> one line and it is filled, replace the valve stem or end cap of the reservoir <br /> (whichever applies) and draw vacuum on the other line (or lines, but done <br /> successively). Each will remain full as long as there is not an entry point for air. <br /> For systems with the reservoir and sensor in the tank sump, the end cap must <br /> remain on the reservoir during filling so the brine does not simply rise in the <br /> reservoir when filling occurs. With the end cap in place, the air trapped in the <br /> reservoir will assure the brine flows into the pipe system. Note: the valve stem <br /> in the end Shrader valve at each pipe leg or branch should be removed when <br /> filling and replaced when brine begins to flow from it. <br /> At this point, the system will be purged of air and ready to be activated. The <br /> valve stem can be replaced on the Shrader valve in the tank sump termination <br /> sleeve. <br /> V. Installing Sensor Equipment <br /> Leak detection sensors can now be placed in the system. These sensors will <br /> have two levels of alarm. A low level alarm will indicate a leak in the containment <br /> system. A high level alarm will indicate a leak in the primary, or a leak in the <br /> containment allowing ground water into the containment (not likely in most <br /> cases). <br /> When placed on the reservoir, the sensors will cause some fluid displacement <br /> due to the space taken up by the sensor. The "finished" brine level should be <br /> adjusted to the center point between the alarm levels by adding or dipping out <br /> some of the brine. <br /> The sensor is to be mounted on or hung from a tapered end cap. This end cap <br /> will fit over the threaded adapter at the top of the reservoir. The purpose of this <br /> cap is to reduce the rate of evaporation of the brine while allowing the reservoir <br />