Understanding permeate quality in DOW reverse osmosis (RO) systems is crucial for assessing the efficiency of water purification processes. Permeate refers to the treated water that passes through the RO membrane, ideally featuring low total dissolved solids (TDS) and minimal contaminants. The quality of permeate is influenced by factors such as feed water characteristics, operating conditions, and membrane performance. Regular monitoring of permeate quality ensures optimal system performance and helps identify potential issues, such as membrane fouling or scaling. High-quality permeate is essential for applications in various industries, including food and beverage, pharmaceuticals, and wastewater treatment.