- (a) For systems on a municipal or community water supply, an irrigation contractor shall provide allowances in the design for a reduction in static pressure of up to 10 pounds per square inch (psi) to accommodate possible loss of pressure in the supply network.
- (b) Where variable or excessive static pressure exists, an irrigation contractor shall specify pressure regulation.
- (c) An irrigation contractor shall specify the recommended minimum operational pressure for the irrigation system at the maximum design flow rate.
History Note: Authority G.S. 89G-5;
Eff. August 1, 2011;
Pursuant to G.S. 150B-21.3A, rule is necessary without substantive public interest Eff. September 22, 2014;
Amended Eff. November 1, 2016.