Maintaining proper sanitizer levels in a spa is crucial for a healthy and enjoyable soaking experience. Sanitizer levels are depleted through use, introduction of contaminants, and sunlight exposure. Therefore, periodic “shocking,” or superchlorination/superoxidation, is necessary to eliminate organic waste and restore sanitizer effectiveness. The precise amount of oxidizer required depends on the specific product used, its concentration, and the spa’s current water chemistry.
Regularly oxidizing spa water offers significant benefits. It eradicates bacteria, algae, and other microorganisms, preventing cloudy water, unpleasant odors, and potential health risks. Furthermore, it breaks down organic compounds like body oils, lotions, and cosmetics that can interfere with sanitizer effectiveness. Historically, chlorine-based shocks were the primary method, but non-chlorine alternatives, such as potassium monopersulfate, have gained popularity due to their gentler nature and reduced odor.