101Behind the Wall Considerations and Solutions for Reduced Water Consumption Rates of Urinal Fixtures R educed consumption and zero consumption rates for urinal fixtures have distinct and potentially profound effects on sanitary piping and drain line carry due in large part in large part to ID: 1045934
Download Presentation The PPT/PDF document "Water Connects Us ® CHEMISTRY" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
1. Water Connects Us®
2. CHEMISTRY 101-Behind the Wall Considerations and Solutions for Reduced Water Consumption Rates of Urinal FixturesReduced consumption and zero consumption rates for urinal fixtures have distinct and potentially profound effects on sanitary piping and drain line carry, due in large part in large part to Chemistry. 2
3. Effects of Reduced Water Consumption on Sanitary PipingWhat are the chemical processes at work? Water Consuming UrinalsVery Low Water Consuming UrinalsNon Water Consuming Urinals What are the best practices to address these?InstallationMaintenance What are some emerging or new technologies available to address these issues?3
4. The coalition endeavors to identify possible unintended consequences of water efficiency and, through applied research, determine best design and maintenance practices for the safe use of water in buildings4
5. Water consumption by water-using plumbing products and appliances – 1980 to 20155
6. 6Washdown Urinal UpdateFlush volume has steadily decreased3gpf 1.5gpf 1.0gpf 0.5gpf 0.25gpf 0.125 gpf0.125 gpf has become standard for saving waterHave saved millions of gallons of waterSome negative perceptions have been created:Create excessive odorTrapway and drain lines continue to clog with calciteNot enough water to be hygienicPrimary reason for all of these:Marginal flush volume and flow
7. 7WaterFree Urinal UpdateGOOD: Category has grown rapidlyGOOD: Still highest savings urinal available – 100%GOOD: Provides exceptional performanceBAD: Negative perceptions such as:Frequent clogsExcessive odorDifficult and/or unpleasant maintenancePrimary reason for all of these:Poor Maintenance & installation
8. Plumbing Code Addresses Build-up in Urinal Drain linesUniform Plumbing Code and Proposed WE*Stand:2012 UPC Section 4.3.2.1.2 (Also appears in the Green Plumbing Mechnical Code Supplement and in the draft WE Stand ANSI Accredited Water Efficiency Standard to be published next year)Where nonwater urinals are installed, not less than one water supplied fixture rated at not less than 1 drainage fixture unit (DFU) shall be installed upstream on the same drain line to facilitate drain line flow and rinsing. 8
9. Composition of UrineHuman urine is comprised of approximately 96 percent water and 4 percent other constituents, which include 1.8 percent urea, 1.2 percent mineral salts, 0.06 percent creatinine, 0.03 percent uric acid, and 0.91 percent additional biological constituents9
10. Composition of UrineUrine contains organic and inorganic constituents, with organic constituents representing 58 percent and inorganic constituents represent 42 percent of the total 4 percent volume. The principal organic constituent in urine is urea, representing 99 percent of the organic volume. The principle inorganic constituent in urine is sodium chloride, representing 50 percent of the inorganic volume 10
11. What Happens in Drain Pipes of Water-Flushing Urinals?The inorganic mineral sediments found in water-flushing urinal plumbing drain pipes were identified using X-Ray Diffraction (XRD). Primarily calcite (CaCO3). Other inorganic mineral sediments were found, such as Hydroxyapatite Ca5(PO4)3(OH) and Struvite (MgNH4PO46H2O) but at much lower concentrations. Note: Hydroxyapatite, also known as Hydroxylapatite or HAP, is a form of calcium apatite with the formula Ca5(PO4)3(OH) but is usually written Ca10(PO4)6(OH)2 to denote that the crystal unit cell comprises two molecules.11
12. Water Consuming Urinals(1.5 GPF to 0.25 GPF)12
13. What Happens in Non-Water Urinal Drain Pipes? The inorganic mineral sediments found in non-water urinal plumbing drain pipes were identified using X-Ray Diffraction (XRD) and found to be comprised primarily of struvite (MgNH4PO46H2O) Magnesium Ammonium Phosphate Hexahydrate, also known as MAP. Other inorganic mineral sediments were found, such as Hydroxyapatite Ca5(PO4)3(OH) and Calcite (CaCO3) but at much lower concentrations 13
14. Waterfree Urinals(>0.25 GPF)14
15. 15Mineral Sediments in Nonwater urinals
16. Australia and AS Flow Ongoing Research16
17. 17
18. 18
19. 19
20. Museum of Science and Industry Innovates20
21. HARNESSING SUPPLEMENTAL SOURCES OF DRAIN LINE WATERAs commercial building designs continue to reduce water consumption through the use of high efficiency and waterfree fixtures, the need to maintain proper drain line carry with less water is growing. Independent studies have shown impressive benefits associated with incorporating one or more water fixtures such as sinks or toilets upstream from waterfree urinals.When this option is not available, innovative companies such as Chicago’s Museum of Science and Industry have installed a simple system consisting of a solenoid valve, controller and air gap device directly into the main drain line with dramatic results. Whenever possible, Falcon recommends these practices to provide a supplemental source of water that minimizes drain line maintenance requirements and provides superior waterfree urinal performance.21
22. MUSEUM OF SCIENCE & INDUSTRY Chicago, IllinoisConfigurationTwo banks of 9 urinals each, installed in the central restrooms on the main floorInstalled 20073/4” Solenoid Valve on timer upstream of urinal bank where no water supplying fixture existedTimer set for 3x per day, 5 seconds of flow, ~1 gallon per cycle22
23. MUSEUM OF SCIENCE & INDUSTRY Chicago, IllinoisResultsAfter 7 years of use, the drain pipes remain clean and free of debris, using only 1,100 gallons per year.23
24. 24Jetrinse Solution TechnologyVigorously injects ~1 gallon of water through housing and down the drain of the urinal automatically every 72 hoursOnly 2 gallons/week no matter how many usersZero water is used during operation means maxiumum LEED points and water savingsPrevents struvite build up in drain nipple that causes most clogs & odorsEliminates need for bucket dumps & bottle brush cleaningFeaturing Falcon Waterfree Technology
25. 25
26. Hybrid Installations26
27. Installations27HIGHER EDUCATIONUSCUCLAUC RiversideCommunity College New YorkENTERTAINMENTDisneylandLA Convention CenterHillcrest Country ClubHollywood BowlBeverly HiltonCLASS A OFFICE BUILDINGSWest Valley Municipal BuildingGoogle HQBobrick Head QuartersCentury PlazaKEY INFLUENCERSCal TransAO ReedGenslerLADWP Head Quarters
28. Hybrid Urinal Installations2828USCDISNEYLANDINSTALL DATE02/18/2016INSTALL DATE03/17/2016CHECK IN DATE05/11/2016CHECK IN DATE06/03/2016GOOGLEINSTALL DATE03/15/2016CHECK IN DATE06/10/2016CHECK IN DATE07/22/2016
29. Hybrid Urinal Installations2929LOS ANGELES CONVENTION CENTERHOLLYWOOD BOWLINSTALL DATE12/01/2016INSTALL DATE05/2015CHECK IN DATE05/31/2016UCLAINSTALL DATE02/29/2016CHECK IN DATE04/18/2016CHECK IN DATE06/09/2016CHECK IN DATE07/2016Urinal taken off the wall for annual inspection, line clean
30. Hybrid Urinal Installations3030LOS ANGELES DEPARTMENT OF WATER AND POWER HEADQUARTERSHines- HOWARD HUGHES CENTERINSTALL DATE06/02/2016INSTALL DATEJuly 25, 2016CHECK IN DATECHECK IN DATEUpcomingGENSLERINSTALL DATEupcomingCHECK IN DATEUPCOMING
31. Thank You31