For users of major US water softener brands (such as EcoWater, GE, RainSoft, etc.), the Vacation Mode is a core function to protect equipment safety and save energy. Its working principle is to put the unit into a "deep sleep" state: it pauses unnecessary regeneration cycles to save salt and water,
This process is strictly based on the official certification specifications of NSF International (National Sanitation Foundation). It clarifies the technical requirements, audit standards and practical details for all stages from pre‑preparation, formal application to certification maintenance for v