Effective area, water production, etc. The parameters that need to be tested before installing the RO machine are: effective area, water production, standard desalination rate, inlet water channel, test pressure, test concentration NaCl, maximum working pressure, maximum inlet water turbidity, maximum inlet water SDI value, maximum working temperature . RO equipment is reverse osmosis equipment. The reverse osmosis equipment passes the raw water through a fine filter, a granular activated carbon filter, a compressed activated carbon filter, etc., and then pressurizes it through a pump, using a pore size of 1/10000 μm (equivalent to the size of E. coli). 1/6000, 1/300 of viruses) reverse osmosis membrane (RO membrane), which turns higher-concentration water into low-concentration water, and at the same time isolates all impurities such as industrial pollutants, heavy metals, bacteria, and viruses mixed into the water. , thereby meeting the physical and chemical indicators and hygienic standards required for drinking, and producing clear and pure water, which is the best choice for the human body to replenish high-quality water in a timely manner. Since the water purity produced by RO reverse osmosis technology is the highest among all water production technologies currently mastered by humans, with a cleanliness level of almost 100, people call this water production machine a reverse osmosis pure water machine.