Minnesota Administrative Rules
Plumbing Board
4714 - PLUMBING CODE
4714.0702 - FIXTURE UNIT EQUIVALENTS.

Universal Citation: MN Rules 4714.0702
4714.0702 FIXTURE UNIT EQUIVALENTS.

UPC section 702, Table 702.1, is amended to read as follows:

TABLE 702.1
Drainage Fixture Unit Values (DFU)
Plumbing Appliances, Appurtenances, or Fixtures Minimum Size Trap and Trap Arm6
(inches)
Private Public Assembly7
Bathtub or Combination Bath/Shower 1-1/2 2.0 2.0 --
Bidet 1-1/4 1.0 -- --
Bidet 1-1/2 2.0 -- --
Clothes Washer, Domestic, Standpipe5 2 3.0 3.0 3.0
Dental Unit, Cuspidor 1-1/4 -- 1.0 1.0
Dishwasher, Domestic, with Independent Drain2 1-1/2 2.0 2.0 2.0
Drinking Fountain or Water Cooler 1-1/4 0.5 0.5 1.0
Food Waste Grinder, Commercial 2 -- 3.0 3.0
Floor Drain, Emergency 2 -- 0.0 0.0
Floor Drain (for Additional Sizes see section 702.0) 2 2.0 2.0 2.0
Shower, Single-Head Trap 2 2.0 2.0 2.0
Shower, Multi-Head, Each Additional 2 1.0 1.0 1.0
Lavatory, Single 1-1/4 1.0 1.0 1.0
Lavatory, in Sets of Two or Three 1-1/2 2.0 2.0 2.0
Washfountain 1-1/2 -- 2.0 2.0
Washfountain 2 -- 3.0 3.0
Mobile Home, Trap 3 12.0 -- --
Receptor, Indirect Waste1,3 1-1/2 See footnote1,3
Receptor, Indirect Waste1,4 2 See footnote1,4
Receptor, Indirect Waste1 3 See footnote1
Sinks -- -- -- --
Bar 1-1/2 1.0 -- --
Bar2 1-1/2 -- 2.0 2.0
Clinical 3 -- 6.0 6.0
Commercial With Food Waste2 1-1/2 -- 3.0 3.0
Commercial Pot or Scullery 2 -- 4.0 4.0
Special Purpose2 1-1/2 2.0 3.0 3.0
Special Purpose 2 3.0 4.0 4.0
Special Purpose 3 -- 6.0 6.0
Kitchen, Domestic2 (with or without food waste grinder, dishwasher, or both) 1-1/2 2.0 2.0 --
Laundry2 (with or without discharge from a clothes washer) 1-1/2 2.0 2.0 2.0
Service or Mop Basin 2 -- 3.0 3.0
Service or Mop Basin 3 -- 3.0 3.0
Service, Flushing Rim 3 -- 6.0 6.0
Wash, Each Set of Faucets -- -- 2.0 2.0
Urinal, Integral Trap 1.0 GPF2 2 2.0 2.0 5.0
Urinal, Integral Trap Greater Than 1.0 GPF 2 2.0 2.0 6.0
Urinal, Exposed Trap2 1-1/2 2.0 2.0 5.0
Water Closet, 1.6 GPF Gravity Tank 3 3.0 4.0 6.0
Water Closet, 1.6 GPF Flushometer Tank 3 3.0 4.0 6.0
Water Closet, 1.6 GPF Flushometer Valve 3 3.0 4.0 6.0
Water Closet, Greater Than 1.6 GPF Gravity Tank6 3 4.0 6.0 8.0
Water Closet, Greater Than 1.6 GPF Flushometer Valve 3 4.0 6.0 8.0

For SI units: 1 inch= 25 mm

Notes:

1 Indirect waste receptors shall be sized based on the total drainage capacity of the fixtures that drain therein to, in accordance with UPC Table 702.2(b).

2 Provide a 2-inch (50 mm) minimum drain.

3 For refrigerators, coffee urns, water stations, and similar low demands.

4 For commercial sinks, dishwashers, and similar moderate or heavy demands.

5 Buildings having a clothes-washing area with clothes washers in a battery of three or more clothes washers shall be rated at 6-fixture units each for purposes of sizing common horizontal and vertical drainage piping.

6 Trap sizes shall not be increased to the point where the fixture discharge is capable of being inadequate to maintain their self-scouring properties.

7 Assembly [See Minnesota Rules, chapter 1305, International Building Code].

Statutory Authority:

MS s 326B.43; 326B.435

History:

40 SR 71

Published Electronically:

January 25, 2016

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