Where the recreational vehicle park
is provided with a piped water supply system
, means for flushing the recreational vehicle
holding tank and the sanitary disposal station slab shall be provided that consists of a piped supply of water under pressure
, terminating in an outlet located and installed to prevent damage by automobiles or recreational vehicles
. The flushing device shall consist of a properly supported riser
terminating not less than 2 feet (610 mm) above the ground surface, with a 3
of an inch (20 mm) valved outlet adaptable for a flexible hose.
The water supply to the flushing device shall be protected from backflow using a listed vacuum breaker or backflow prevention device located downstream from the last shutoff valve.
Adjacent to the flushing arrangement shall be posted a sign of durable material not less than 2 feet by 2 feet (610 mm by 610 mm) in size. Inscribed thereon in clearly legible letters shall be the following:
"DANGER — NOT TO BE USED FOR DRINKING OR DOMESTIC PURPOSES."