UV Sterilizers

Ultraviolet is the one treatment step that kills biology without touching your water chemistry. Nothing is dosed, nothing is left behind for your feed recipe to work around — water passes a lamp, the organisms in it stop being able to reproduce, and everything else about the water is exactly as it was. It removes nothing, so it sits alongside filtration rather than replacing it. Size it on flow rate, not gallons per day, and fit it last in the line: UV leaves no residual, so anything downstream of the lamp can recontaminate.