Your vehicle and tank must be modified to provide an approved air gap (AAG) to prevent contamination of the public water supply.
Important: Failure to provide and maintain the AAG will result in cancellation of access card privileges.
AAG; The air gap between the end of the pipe and the tank must be at least 2 times the diameter of the pipe (See the diagram below). Rigid piping must also be permanently attached to the vehicle and fitted with a Cam-Lock adaptor (coupler end).
Vehicle connection; 80mm (3") coupler end (female) must be equipped on the water truck/tank.

