A fuel delivery and storage method is provided. A further aspect employs a remote central controller and/or software instructions which receive sensor data from stationary and bulk fuel storage tanks, portable distribution tanks, and end use tanks. Another aspect of the present system senses and transmits tank or hydrogen fuel characteristics including temperature, pressure, filled volume, contaminants, refilling cycle life and environmental hazards. Still another aspect includes a group of hydrogen fuel tanks which is pre-assembled with sensor, valve, microprocessor and transmitter components, at least some of which are within an insulator.

A washing apparatus has a vacuum unit and a pressure washer unit. The vacuum unit has a mud tank, a first centrifuge, and a second centrifuge, and the pressure washer unit has a first water tank having a bottom, a top and a side, and a second water tank having a bottom, a top and a side. A frame having a top, a base and four corners supports the vacuum unit and pressure washer unit. The first centrifuge and the second centrifuge are fixed in respective first and second corners of the frame, and the first water tank and second water tank are fixed in respective third and fourth corners of the frame.

A fuel system includes a controller and a fuel delivery system having a fuel line. The fuel delivery system is fluidly coupled to a fuel tank. The fuel line defines an inlet and is adapted to extend between the inlet and the fuel tank to transport the fuel. The one or more sensor devices are configured to provide data indicative of a characteristic of the fuel. The controller is configured to detect a characteristic differential between the inlet and the fuel tank based on data from the one or more sensor devices to identify occurrence of a fill operation, and control the fuel delivery system for the fill operation in response to detecting the characteristic differential identifying occurrence of the fill operation.

A fuel system includes a controller and a fuel delivery system having a fuel line. The fuel delivery system is fluidly coupled to a fuel tank. The fuel line defines an inlet and is adapted to extend between the inlet and the fuel tank to transport the fuel. The one or more sensor devices are configured to provide data indicative of a characteristic of the fuel. The controller is configured to detect a characteristic differential between the inlet and the fuel tank based on data from the one or more sensor devices to identify occurrence of a fill operation, and control the fuel delivery system for the fill operation in response to detecting the characteristic differential identifying occurrence of the fill operation.