Abstract: A car wash liquid containment and measurement apparatus having a reservoir defining a first interior region configured to hold a liquid therein. The apparatus has a valve with a first position and a second position and the valve is coupled to the reservoir. There is also a measurement apparatus coupled to the valve defining a second interior region and a tube disposed at least partially within the second interior region of the measurement apparatus. The valve fluidly isolates the first interior region from the second interior region when the valve is in the first position and the valve fluidly couples the first interior region with the second interior region when the valve is in the second position.