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APR 252018
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SERVE U wE E CITY OF TIGARD
146 West Columbia River Highway/P.O. Box 386 BUILDING DIVISION
Troutdale, Oregon 97060
Infocr lliancePlumbing.net
(503) 492-3490
River Terrace East Condos (Downhill 12 Plex)
Calculations
Waste Calculations Fixture units Total Fixture Units
12-Kitchen sinks 2.0 24
12-Clothes Washers 3.0 36
18-Water Closets 3.0 54
18-Tub/Showers 2.0 36
21-Lavatory Sinks 1.0 21
Total = 171
4" Sanitary Sewer
Water Calculations Fixture Units Total Fixture Units
12-Kitchen sinks 1.5 18
12-Dishwashers 1.5, 18
12-Clothes Washers 4.0 48
18-Water Closets 2.5 - 45
18-Tub/Showers 4.0 - 72
21-Lavatory Sinks 1.0 21
Sizing Chart Total = 222
2" 240 F/U " 2" Water Service
1-1/2" 117 F/U 200' TDL
1-1/4" 52 F/U 100 PSI
1" 23 F/U 64 PSI (After PRV)
3/4" 11 F/U 35' Elevation
1/2" 3 F/U (-17.5 PSI)
46.5 PSI System Design
*System designed per 2017 edition of the Oregon Plumbing Specialty Code*
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