Section 62-04-07-09 - Water supply distribution1.Supply demand. The supply demand in gallons per minute in the building water distributing system shall be determined on the basis of the load in terms of supply fixture units and of the relationship between load and supply demand as shown in the tables contained in subsection 2 of section 62-03-10-13. 2.Size of fixture supply. The minimum sizes of a fixture supply pipe shall be as shown in the table contained in subsection 2 of section 62-03-10-14. The fixture supply pipe shall be extended to within at least thirty inches [76.2 centimeters] of the point of connection to the fixture, and be within the same area and physical space as the point of connection to the fixture. Not more than two fixtures shall be supplied by a one-half inch [12.7 millimeter] pipe. All future fixture connections must be considered in sizing pipe at the time of initial installation. 3.Existing installations. Pipe sizes in existing installations may be increased but shall not be decreased. 4.Minimum size inlet and outlet. The minimum size inlet and outlet piping to water softeners and water filters must be not less than the distribution pipe served. Control valves must be installed in the inlet and outlet lines. A bypass valve must be installed between the inlet and outlet line valves. N.D. Admin Code 62-04-07-09
Amended effective January 1, 1992.General Authority: NDCC 43-18.1-03
Law Implemented: NDCC 43-18.1-04