Minnesota Legislature
Office of the Revisor of Statutes
Minnesota Administrative Rules
This is an historical version of this rule part. Also view the current version.
4715.1730 SIZE OF FIXTURE BRANCH.
§
Subpart 1.
Requirement.
The minimum size of the fixture branch pipe shall be as shown in subpart 2. The branch pipe to any fixture shall terminate not more than 30 inches from the point of connection to the fixture and in every instance shall be brought to the floor or wall adjacent to the fixture. No concealed water branch pipe shall be less than one-half inch in size. In single-family dwelling units, not more than three fixtures located in the same room may be supplied by a one-half inch size pipe.
§
Subp. 2.
Table of minimum sizes of fixture water branch lines.
| Type of fixture or device | Nominal pipe size (inches) |
| Bath tubs | 1/2 |
| Combination sink and tray | 1/2 |
| Cuspidor | 1/2 |
| Drinking fountain | 1/2 |
| Dishwasher (domestic) | 1/2 |
| Kitchen sink (res.) | 1/2 |
| Kitchen sink (com.) | 3/4 |
| Lavatory | 1/2 |
| Laundry tray | 1/2 |
| Sinks (service, slop) | 1/2 |
| Sinks flushing rim | 3/4 |
| Urinal (flush tank) | 1/2 |
| Urinal (direct flush valve) | 3/4 |
| Water closet (tank type) | 1/2 |
| Water closet (flush valve type) | 1 |
| Hose bibbs | 3/4 |
| Wall hydrant | 3/4 |
| Domestic clothes washer | 1/2 |
| Shower (single head) | 1/2 |
History:
L 2007 c 140 art 6 s 15; art 13 s 4; 33 SR 2042
Published Electronically:
May 14, 2012
Official Publication of the State of Minnesota
Revisor of Statutes