S.D. Admin. R. 74:02:09:08
Current through Register Vol. 51, page 67, December 16, 2024
The chemical injection line check valve shall be located between the point of chemical injection into the irrigation pipeline and the chemical injection pump, as illustrated in Appendix A at the end of this chapter. Unless a positive displacement pump is utilized, a second chemical injection line check valve shall also be located between the point of chemical injection into the irrigation pipeline and chemical injection pump. The valve or valves shall be designed to have a minimum opening (cracking) pressure of ten pounds per square inch.
S.D. Admin. R. 74:02:09:08
General Authority: SDCL 34A-2A-3.
Law Implemented: SDCL 34A-2A-3.