<Li> Many security and safety risks are significantly reduced or eliminated using liquid logistics techniques . Tools such as liquid level sensors and flow meters can be useful in reducing security risk by providing directly, near real - time and accurate measurements of product's movement and balance along the supply - chain flow . The safety risk is reducing as product movement through the process of supply stream is independent and controlled . </Li> <Li> Liquids may in some cases be "processed" well downstream from the original production facility and thus offer the opportunity for improved efficiencies throughout the supply stream together with more flexibility as to the nature of the product at the point of final usage . </Li> <P> Each of these points represents a differentiation of liquid logistics from logistics techniques used for discrete items . When properly planned for and handled these points of differentiation may lead to business advantages for companies that produce, process, move, or use liquid products . </P>

Liquids flow from higher level to lower level