convert seawater largescale industries safe water applications source domestic commercial diarrhea 6 suitable preferred choice benefits making potassium advantages excessive minerals kidney issues sustainable alternative arid regions applications heres providing clean crucial role improve taste activated carbon uv remineralization pump increases dissolved salts purifies water purified water water pressure industrial models storage tank pharmaceuticals food harmful chemicals reducing remove contaminants impurities pharmaceuticals food processing water sources works poor water quality potable water importance pure water molecules water purification system industrial ro plants quality storage distribution pharmaceuticals power plants beverage power plants offices schools restaurants reverse osmosis technology