(Referenced in Section 890.120, Definition of "Trap.")
(Referenced in Section 890.120, Definition of "Trap Seal.")
Ill. Admin. Code tit. 77, pt. 890, subpt. M, app B, ILLUSTRATION W
(Referenced in Section 890.120, Definition of "Trap.")
(Referenced in Section 890.120, Definition of "Trap Seal.")
Ill. Admin. Code tit. 77, pt. 890, subpt. M, app B, ILLUSTRATION W