With the spray nozzle, the shampoo can remove deep-seated dirt easily and effectively. The spray nozzle is easy to use and dispenses the right amount of shampoo to make sure that the shampoo lasts for several washes. Connect the hose quick connector to the spray nozzle. Check that it is properly fitted. Turn on the tap until you get the right flow of water. Adjust the flow by pushing the catch backwards and turning the knob. Rinse the horse off after washing it.