Non-potable water is water that is not safe for human consumption due to the presence of contaminants, pollutants, or inadequate treatment. It can be used for non-drinking purposes such as irrigation, flushing toilets, or industrial processes. In plumbing, non-potable water systems are clearly marked to prevent accidental cross-connection with potable water supplies, ensuring safety and compliance with health codes. Proper treatment, filtration, and management are necessary to maintain the quality of non-potable water and prevent environmental or health risks.
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