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HomeMy WebLinkAbout011-water service worksheetResidential (2012 IRC) City of Bozeman Water Service Calculation Worksheet Project Address: ___________________________________ Property Owner: ______________________________ General Contractor: _______________________________________________________________________________ Permit Number: _______________ Proposed Water Meter Size: _______________ Standard Design Water Supply Fixture Units Appliances and Fixtures Fixture Units # of Fixtures Total Bathtub/Combination Tub/Shower 4.0 X ________ = ________ Soaker Tub 10.0 X ________ = ________ Shower (per head) 2.0 X ________ = ________ Clothes washer 4.0 X ________ = ________ Dishwasher 1.5 X ________ = ________ Hose Bibb 2.5 X ________ = ________ Additional Hose Bibb (each) 1.0 X ________ = ________ Lavatory Sink 1.0 X ________ = ________ Kitchen Sink 1.5 X ________ = ________ Laundry Sink 1.5 X ________ = ________ Water closet (1.6 GPF) 2.5 X ________ = ________ Urinal (flushometer valve) Table Values* ________ = ________ Total Number of Fixture Units ________ Fixture Unit Tables for Determining Water Pipe & Meter Size Pressure Range – Over 60 PSI Circle the length in feet to the farthest fixture & applicable service, meter & branch sizes below based on the total number of fixture units detailed above. Maximum Allowable Length in feet Meter & Supply & 60’ 80’ 100’ 150’ 200’ Service Branches ¾” ¾” 20 20 19 17 14 ¾” 1” 39 39 36 33 28 1” 1” 39 39 39 36 30 ¾” 1¼” 39 39 39 39 39 1” 1¼” 78 78 76 67 52 1½” 1¼” 78 78 78 78 66 1” 1½”/2” 85 85 85 85 85 1½” 1½” 151 151 151 151 128 2” 1½” 151 151 151 151 150 1½” 2” 370 370 340 318 272 2” 2” 370 370 370 370 368 If count is over 370 fixtures, water demand does not meet table 6.10.4 and has to be engineered by a registered Montana mechanical engineers design, signed and stamped. 12.20.17