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Faucet and Toilet. OCADU Sustainability Report Jenn Lantz. OCAD Stats. There are a total of 88 toilets, 30 urinals The brand and style of the faucets vary and 86 bathroom sinks at OCADU between metered valve, and spigot or gooseneck types. - PowerPoint PPT Presentation


Faucet, Toilet and Urinal sustainabilty report

Faucet and ToiletOCADU Sustainability ReportJenn Lantz

OCAD StatsThere are a total of 88 toilets, 30 urinalsThe brand and style of the faucets varyand 86 bathroom sinks at OCADU between metered valve, and spigot orgooseneck types.The toilets are the typical type used in large commercial buildings, called flush-o-meter, 1.6 gpf.Urinals also vary between 19 flushing and 11 waterless.

Typical maintenance problems

Replacement of diaphragms in the toilets and urinalsFrequent replacement of the washers on the hot and cold water valvesWashroom water factsA running faucet wastes 2.5 gallons of water each minute A leaky faucet dripping one drop per second wastes 6.6 gallons of water per dayToilets and urinals account for nearly one third of building water consumption

Water UsageThe average person runs a faucet between 5 and 30 seconds, using .44 to 1 gallon of water each timeOlder toilets use between 4-7 gpf, with todays average being 3.5 gpf, and new efficient standards being 1.6 gpfFlushing urinals used to average between 3.5-5 gpf, today use an average of 1 gpf, with new low flow models using 1 pint

Water Use Activity ChartConventionalLow-FlowUltra Low-Flow5.03.51.6ConventionalLow-Flow3.02.5Toilet -Gallons per UseFaucet-Gallons per UseToilet18 flushes@ 5 gal/flush=90 galSink6 minutes@ 3 gal/min=18 galFaucet Solutions Energy efficient faucets use a new a new aerator design to optimize water flow, making a 1.5 gpm faucet feel the same as a 2.2gmp-this saves an average of 30% on water usage-expensiveSelf sustaining hands-free faucets are powered by water flow, creating an electrical current that is stored in the rechargeable cells that power the faucet-batteries last 5-10yrs-they feature a low flow 10 second cycle that uses .09 gp cycle, which is 64% below the average-expensive, difficult to installSeparate aerators help alleviate water consumption by mixing water with air so that pressure remains while flow is reduced- they come in a variety of sizes and formats that can be fit to any faucet, and cost around $1.00 on average when bought in bulk

7Toilet SolutionsFlush-o-meter toilets and urinals can be retrofit with low consumption valve replacement kits that would make them 1.6/1 gpf respectivelyFlush-o-meter toilet valve fixtures can be retrofit with a replacement handle, which reduces the flushing volume by 50-70%Install piston valves that will help prevent leaking water

8Which is replacement priority?300 male workers 10 male toilets, 15 urinalsMale flush-260 x 300 men x .5 flushes per day -39 000 flushes per year, which means 3900 per male per toilet flush per yearMale urinals at 2.5 urinal flushes per day, 195 000 flushes per year, which means 13 000 flushes per year per urinal

200 female workers 25 female toiletsFemales flush-3 x flushes per day, 156 000 flushes per year, which means 6,240 flushes per year, per female toilet

9Toilet solutions, costs and breakdownSloan Regal 186 XL Exposed Urinal Flushometer valve replacement kit$115.89 converts to 1.5 gpf

Uppercut Manual Dual-Flush FlushometerReduces flush between 1.6 and 1.1 gpfRange between $206.50-224.60

10Faucet options breakdownStandard faucet aerators are rated at 2.2 gallons per minute. Flow rate reduction will be-1.5 gpm = up to 32%1.0 gpm = up to 54%0.5 gpm = up to 77%0.53 gpm = up to 84%

0.5 gpm Dual thread Faucet Aerator non PCA-produces a spray flow-China- #n3205-11-5 6 59 more than 60$2.10 $1.94 $1.80

Delta Lavatory Low-Flow faucet Model #701HD one handle metering flow rate Of 0.5 gpm from US, ships for free- $119.04 per

11ConclusionTo properly consider water conservation in OCAD washrooms, a thorough usage study should be conducted firstAs even the best valve retrofit for the toilets will only save a few gallons per flush, priority might best be placed on replacing the remaining 19 flushing urinals firstThe obvious and best solution is to install low cost, highly efficient aerators on the washroom faucetsBilbliographyDoh.wa.gov-indoor water auditNeoperl.com-flow regulation systems/aeratorsNiagaraconservation.com-many energy saving productsThesexygreenhome.com-American stats and rundownsTapmaster.ca-foot controlled faucet componentsEc.gc.ca/eau-water-enviro. Canada site-consumers guideCwwa.ca-Canadian water and wastewater associationBenefits-of-recycling.com-general site1.eere.energy.gov-good American site for institutional solutionsEpa.gov-best practices for greening-AmericanAfedonline.org-water efficiency manualFacilitiesnet.com-article about washrooms, statsAllianceforwaterefficiency.org-govt. buildings introMwra.state.ma.us-Massachusetts water resources authority Fypower.org-flex your power, commercial product guidesConservewater.utah-consumer reports ratingsDualflushkit.comTlc.howstuffworks.com-retrofitting older toilets to save water

Green, Deborah. Water Conservation for Small and Medium Sized Utilities. American Water Works Association, 2009, USA. P.74.