The technical personnel of Cixi Chenhe Electrical Appliance Co., Ltd. have developed a new flushing program according to the current use of RO water purifier and its working characteristics. The original computer RO water purifier has to work 7.5 hours accumulatively for automatic flushing once. The original flushing program can not prolong the service life of RO film, which is embodied in RO membrane scaling problem occurs in less than one or two years, seriously hampering the development of pure water industry. Chenhe technicians use water every time to wash RO membrane for 10 seconds, so that the dirt can be washed out in the first time, so in the diaphragm pump, pressure barrel under the best pressure, so that RO membrane service life than the original three times longer, greatly reduced. The user's cost of use.