Ozone treatment systems are designed to move ozone gas in one direction: from the ozone generator, through the gas delivery system, and into the water being treated. The water is supposed to remain on the process side of that boundary. When that direction reverses, even briefly, the consequences can be serious. Process water can migrate toward ozone gas piping, analyzers, distribution components, and ultimately the generator. Moisture can contaminate equipment that is intended to remain dry and can turn a minor hydraulic upset into a shutdown, service event, or equipment [...]
