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<br />.- <br /> <br />/' <br />I <br /> <br />5. <br /> <br /> TABLE 3 <br />RetrofJ.t Cost Annual SavJ.ngs payback <br /> Gal. $ <br />Reduce winter bleed <br />flow. $0 129,000 $291 immed. <br />Flow Restrictors <br />(flush valve toilets) $45 2,800 $ 7 7 yrs. <br />CombJ.ned ~45 131,800 ~298 2 mos. <br /> <br />CONCLUSION <br />The Social Services Parking Garage has minimal water usage, <br />the majority of which is associated to winter bleeding of <br />water to prevent freezing. Domestic usage and vehicle <br />washing make up the rest of the water use at the facility. <br /> <br />It is recommended that the bleed flow be reduced from <br />approximately 0.6 gpm to 0.1 gpm during the winter. This <br />flow should be adequate to prevent freezing and will <br />significantly reduce water usage. <br /> <br />Other water saving retrofits do not appear cost effective at <br />this time. Retrofits to toilets and sinks would result in <br />water savings, but due to the minimal usage of the restrooms <br />it would not be as cost effective as in other state <br />facilities. <br />