b. Hose pivots. The hose pivots support the hose and should
hose, since only one vehicle will be served by the island. Figure
be properly sized steel beams which support the hose and allow
4-6 shows the tower in cross section.
horizontal rotation of the hose. Cushioned stops should be
installed on the towers to limit the movement of the pivot to 180
a. Height. At least 15 feet (4.6 meters) clearance is needed
degrees in the horizontal plane. A tie rod or other form of brace
between the pavement and the hose pivot point. If a vehicle
should be used to stabilize the pivot in the vertical direction. A
taller than this height will be washed at the facility, a higher
system should be included to secure the hose after use. This
clearance can be used at one or more wash stations, as required.
system shall allow for draining of all water out of the hose and
keep it from being run over by the vehicles.