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Foundations of Real Estate Management BOMA International ® Module 3: Building Operations I Domestic Water ®
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Foundations of Real Estate Management Module 3: Building Operations I 2 ® Objectives Describe the components of the domestic water supply system Describe the components of the wastewater return system List the three “rules” of plumbing
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Foundations of Real Estate Management Module 3: Building Operations I 3 ® Domestic Water Fire Suppression Irrigation Drinking Restrooms/kitchens Cleaning Cooling Tower Make Up
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Foundations of Real Estate Management Module 3: Building Operations I 4 ® Universal Rules of Plumbing HOT on the left COLD on the right SEWAGE does not flow uphill
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Foundations of Real Estate Management Module 3: Building Operations I 5 ® Potable Water Water that is suitable for drinking
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Foundations of Real Estate Management Module 3: Building Operations I 6 ® Water Systems Supply Public Private (well) Wastewater Public Private (septic)
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Foundations of Real Estate Management Module 3: Building Operations I 7 ® Supply Domestic water meter Photo courtesy of Transwestern
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Foundations of Real Estate Management Module 3: Building Operations I 8 ® Supply Photo courtesy of Transwestern Backflow Preventer
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Foundations of Real Estate Management Module 3: Building Operations I 9 ® Supply Domestic Water Pumps (lead-lag) Photo courtesy of PM 101
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Foundations of Real Estate Management Module 3: Building Operations I 10 ® Supply Photo courtesy of Transwestern Domestic Water Riser
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Foundations of Real Estate Management Module 3: Building Operations I 11 ® Supply Domestic water riser Domestic water mains Domestic water supply lines Fixtures
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Foundations of Real Estate Management Module 3: Building Operations I 12 ® Green Alternatives Faucets Low flow faucets Toilets Low flow toilets Dual flush valves Urinals Low flow urinals Waterless urinals
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Foundations of Real Estate Management Module 3: Building Operations I 13 ® Hot Water Heaters Single tank Tanks on each floor or section Tanks at each point of use Instant hot Cogeneration Sacrificial anode – corrodes the rod instead of the bottom of the tank
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Foundations of Real Estate Management Module 3: Building Operations I 14 ® The Whole System - Supply
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Foundations of Real Estate Management Module 3: Building Operations I 15 ® Valves Sillcock Photo courtesy of Transwestern
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Foundations of Real Estate Management Module 3: Building Operations I 16 ® Valves Ball Valve/Quarter Turn Valve Photo courtesy of Transwestern
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Foundations of Real Estate Management Module 3: Building Operations I 17 ® Valves Outside Stem & Yoke (OS&Y Valve) Photo courtesy of Transwestern
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Foundations of Real Estate Management Module 3: Building Operations I 18 ® Wastewater Black water Toilets and urinals, showers and bathtubs (not recyclable) Gray water Sinks, dishwashers, clothes washers (recyclable)
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Foundations of Real Estate Management Module 3: Building Operations I 19 ® Wastewater Drain Trap Photo courtesy of Transwestern
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Foundations of Real Estate Management Module 3: Building Operations I 20 ® Wastewater Gravity fed 1/8” of pitch for every 1’ of run Feeds to a riser and out of the building Cleanouts
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Foundations of Real Estate Management Module 3: Building Operations I 21 ® Wastewater Remember, water does not flow uphill If the fixture is located below the drain line (like in a basement), the plumber will install an ejector pump (sewage ejector)
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Foundations of Real Estate Management Module 3: Building Operations I 22 ® The Whole System – Waste Water
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Foundations of Real Estate Management Module 3: Building Operations I 23 ® Typical Sink Installation
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