Connections between potable water systems and other systems or equipment containing water or other substances of unknown or questionable quality are prohibited. No physical connection shall be permitted between potable portion of a supply and any water supply not of equal or better bacteriological and chemical quality as determined by inspection and analysis by the Agency. There shall be no arrangement or connection by which an unsafe substance may enter a supply. There shall be no direct connections between potable water lines and any lines; equipment, or any part of the sewage system, except only such connections as shall be made through a minimum fixed air gap as detailed within § 890.1040 of 77 Ill. Adm. Code 890 or the Illinois Plumbing Code.
(Prior Code, Art. 16, § 16.3(p)(F))