1604.3 Equipment Room Signs. Each equipment room

containing nonpotable rainwater equipment shall have a sign posted with the following wording in 1 inch (25.4 mm) letters: CAUTION NONPOTABLE WATER, DO NOT DRINK. DO NOT CONNECT TO DRINKING WATER SYSTEM. NOTICE: CONTACT BUILDING MANAGEMENT BEFORE PERFORMING ANY WORK ON THIS WATER SYSTEM.

This sign shall be posted in a location that is visible to anyone working on or near rainwater water equipment.

(1) Pumps, equipment, equipment room signs, and

exposed piping in an equipment room shall be checked. 1605.3.2 Cross-Connection Test. A cross-connec- tion test shall be performed in the presence of the Authority Having Jurisdiction or other authorities having jurisdiction to determine whether a cross-connection has occurred as follows: (1) The potable water system shall be activated and

pressurized. The rainwater catchment water system

(3) Fixtures, potable, and rainwater shall be tested and

inspected for flow. Flow from a rainwater catchment water system outlet shall indicate a cross-connection. No flow from a potable water outlet shall indicate that it is connected to the rainwater water system. (4) The drain on the rainwater catchment water system

shall be checked for flow during the test and at the

(4) The drain on the rainwater catchment water system

shall be checked for flow during the test and at the end of the period. (5) The potable water system shall then be completely

drained.