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The only practical place to charge the pipe system with brine is at the installation site. UST's are typically brine filled at the factory. The cutting and bonding of pipe in the field prevents factory charging. To this end, a practical procedure for filling the interstitial space is needed. H. Piping Assembly The bulk of the piping system is installed exactly as non-brine filled containment system. Ameron Bulletin 9903 describes the installation procedures for assembling the piping system. Few additional components are needed to provide the continuous monitoring feature of the brine filled system. Assembly with Reservoirs Located in Dispenser Sumps Figure 1A shows a possible configuration of the brine reservoirs assembled in the most remote dispenser sump (high point of the piping system). Figure 1A The sketch at the left in Figure 1A shows side, cross-sectional view of the pipe in the final or most remote dispenser sump. Most sites will have two or three product lines going to each dispenser. A reservoir is recommended for each product line, in order to isolate any signals given by the system to a single product. The sketch at the right of Figure 1A shows the end view of the inside of the dispenser sump with three reservoirs installed — one for each of three product lines. The termination of each primary line in this configuration is constructed using a 900 elbow and a 2" x 1-1/2-inch FNPT bushing. This bushing would then be assembled with a flex connector that would extend to the shear valve. The use of the 90° elbow facilitates the configuration of the containment connection to the brine reservoir, located downstream of the termination of the primary pipe. The above assembly may be preferred as all the materials used are rigidly bonded fiberglass components. While it is compact, it still may be too large to fit