Patent ID: 8783271

Claim:
A waterfall tank system for applying fluid onto a passing vehicle, comprising: a tank, the tank having a trough portion and an overflow lip; a support system connected with the tank for elevating the tank above a ground surface to allow a vehicle to pass beneath the tank; a curtain attached with the tank such that it hangs from the tank proximate the overflow lip; a water supply inlet fluidly connected with the trough portion of the tank for receiving a water flow from an external water source and introducing water into the tank; a soap injector fluidly connected with the water supply inlet for injecting soap into the water flow to create a soap mix that is supplied to the tank; a perforated air manifold positioned in the trough portion of the tank; and an air motor fluidly connected with the perforated air manifold to introduce air through the perforated air manifold and into the soap mix, whereby upon receiving the soap mix and air, bubbles are created that fill the tank until reaching the overflow lip, at which point the bubbles and soap mix flow over the overflow lip and onto a passing vehicle.