Abstract: A system for controlling water distribution from a water distribution vehicle includes spray heads for spraying water from the vehicle and an actuator system for turning the spray heads on and off. A computer processor is programmed to control the actuator system in response to a sensor input. The system can include means for measuring the ground speed of the vehicle, such as a GPS, and the sensor input signal can be associated with the ground speed of the vehicle. Using a pulse width modulated signal, the processor can adjust water flow from the spray heads based on the vehicle ground speed. The processor also can be programmed to prevent water flow from one or more spray heads when the vehicle speed is below a minimum speed or as the vehicle speed is reduced.

Abstract: A mobile pump system includes a wheeled trailer adapted to transport the mobile pump system. Mounted to the trailer are a hydraulic fluid supply system, a power source and an adjustable pipe system that includes a discharge pipe section, an intake pipe section and a swivel section coupled between the intake pipe section and the discharge pipe section. The swivel pipe section allows the discharge pipe section and the intake pipe section to be pivoted independently of each other. Hydraulic cylinders and extensible pivot arms pivot the discharge pipe section and the intake pipe section so that they can be positioned at various angles with respect to the trailer frame. A submersible hydraulic pump is mounted to the intake pipe section and is driven by the power source and hydraulic fluid supply system.