The feed water pipe of a boiler must be provided with a check valve; however, there must be a stop valve between the boiler and the check valve. Both of those valves must be located as close as practicable to the boiler.
S.D. Admin. R. 61:08:09:21
General Authority: SDCL 34-29A-14.1.
Law Implemented: SDCL 34-29A-14.1.