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<br /> <br />180 2010-2011 PLUMBERS CONTINUING PROFESSIONAL EDUCATION MANUAL <br /> <br />This vast amount of outflow to the sewer <br />and septic systems can be eliminated and <br />will not run into our natural waterways <br />and oceans. <br /> <br />On the local level this could mean: A <br />typical office building rest room with <br />three urinals and 120 men equals a <br />yearly water use of 237,600 gallons of <br />potable water flushed down the drain. <br />This assumes three uses per person per <br />day and only 220 working days. <br /> <br />Restroom Sanitation <br /> <br /> <br />Waterless urinals improve restroom <br />hygiene: Urine itself is normally sterile, <br />0% bacterial, unless one has a kidney <br />infection. Fecal matter is 95% bacterial, <br />and may include pathogens. Microbes, <br />bacteria and viruses thrive in moisture, but they die when dried. There are surface <br />areas in water flush urinals that are constantly damp and where bacterial growths <br />appear. These growth colonies are additionally seeded by fecal material carried in <br />air-borne droplets and aerosols that were produced by the turbulence in flushing the <br />restroom's toilets. When the restroom urinals are themselves flushed, they in turn <br />create aerosols containing the new-growth bacteria, and inject still more microbes <br />into the rest room atmosphere. Installing waterless urinals with predominantly dry <br />surfaces and no additional flushing actions lessen rest room visitor exposures to <br />airborne bacteria. <br /> <br />While seemingly an <br />unusual fixture, the <br />simplicity of waterless <br />urinals is what convinces. <br /> <br />Waterless urinals resemble <br />conventional fixtures, and <br />easily replace them. They <br />install to the regular urinal <br />2" (50MM) waste line (for <br />1 W' (38MM) waste lines, <br />use a reducer bushing). <br />They eliminate flush water <br />supply lines. Flush valves <br />are completely eliminated <br />as well. No handles to <br />touch, no sensors to install <br />or adjust, no moving parts <br />at all! <br /> <br />FIGURE 9 <br /> <br />No-flush urinals <br /> <br />Waterless urinals can save water but the specialized maintenance <br />and costly replacement parts have frustrated some buyers. i <br /> <br />OJ Urine flows Replaceable --1 <br />~ into trap, passes trap cartridge 1~-; <br />through sealant oil. fits into base of ..1 <br />urinal fixture. j <br />Cartridge ! <br />replaced ,i I <br />111 odors._' after \-. ) <br />S~.:;.;;;~ ' 7,000r=9: <br />. .. ..&.~" .. uses. ~-=- I <br />'-~,'~- I <br />";;'Sealant oil D . ,. j <br />,'Ii., ram me ( <br />; <br /> <br /> <br />Drain <br /> <br />UrineQ'~;. <br />flows in't'(; ; <br />drain line.i <br /> <br />Pro <br />Saves up to 40,000 <br />gallons yearly; water <br />savings can offset cost. <br /> <br />(on <br />Maintenance requires <br />knowledgeable staff; <br />regular replacement <br />of costly parts. <br /> <br />FIGURE 10 <br /> <br />- <br />