A reduced pressure principle backflow preventers shall be installed to protect the community water supply against backflow and backsiphonage when:
Ill. Admin. Code tit. 35, § 653.805
Amended at 9 Ill. Reg. 17367, effective October 23, 1985
A reduced pressure principle backflow preventers shall be installed to protect the community water supply against backflow and backsiphonage when:
Ill. Admin. Code tit. 35, § 653.805
Amended at 9 Ill. Reg. 17367, effective October 23, 1985