A single delivery route can consist of large deliveries, smaller tank fills and vehicle top offs. High/low flow rates will allow for flexibility in delivery.
To create a high flow, it is necessary to add pressure to the pump or increase the engine RPM. It is engaged with a push/pull switch on the control panel. Low flow is considered the baseline flow of the truck.
Pairing either option with a center hose reel will give a single system four distinct speed options: delivery hose high and low, center hose high and low.
Multiple flow rates allow for added capabilities with a single truck.