Embodiments according to the present disclosure provide a system that includes a reservoir with an inlet and an outlet wherein the inlet is configured to be in fluid communication with a source of a skin treatment solution. At least one spray nozzle is fluidly coupled to the outlet of the reservoir and is configured to spray the skin treatment solution. A vent valve is operable to open and close based on the level of the skin treatment solution in the reservoir. When the vent valve is open, a cavity of the reservoir is exposed to at least atmospheric pressure. The vent valve may be configured to control liquid flow to the reservoir from the container for refilling the reservoir and to aid in the operation of changing containers and/or purging the system.
