The primary water source for cooling the condenser of a water-cooled recovery unit is:

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Cooling a condenser in a water‑cooled recovery unit needs a dependable, steady supply of water at the right volume and pressure. A local municipal water supply fits that need best because it’s designed to deliver consistent flow to many customers, with regulated pressure, and is readily available for industrial use. Utilities also provide treatment and monitoring data, making it easier to manage makeup water and keep the cooling system from fouling or corroding.

Other sources tend to be less reliable or require more pretreatment. Well water can vary in quantity and mineral content, which can lead to scaling or insufficient cooling flow. River water might have debris, biological growth, and regulatory and environmental hurdles, plus it often needs more complex pretreatment and intake handling. Distilled water is expensive and impractical for continuous cooling and can be more corrosive to equipment because it lacks minerals that help stabilize metals.

So, the municipal supply is the practical, dependable primary source for cooling the condenser.