Reverse Osmosis (RO) as a pump application involves utilizing a pump to drive water through a semi-permeable membrane, separating impurities and contaminants from the water. The pump applies pressure to overcome osmotic pressure, facilitating the purification process by allowing only clean water molecules to pass through while blocking undesirable substances. This technology is widely used in water treatment systems to produce high-quality, potable water for various applications, ranging from residential to industrial processes.