How to maintain the reverse osmosis unit in an EDI ultra-pure water system when it is shut down for extended periods

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　　The reverse osmosis unit is one of the important steps in the process of producing pure water; any issues with this system will directly affect the quality of the pure water produced. Its maintenance measures are as follows: 1. Clean the membrane elements in the system, as these elements play a role in filtering out contaminants. If they are not cleaned, excessive accumulation of contaminants can lead to blockages or contamination of the membranes, which in turn results in an increase in bacteria within the entire equipment. 　　2. Use water produced by reverse osmosis to prepare a disinfectant, which is then used to flush the reverse osmosis system. 　　3. After filling the system with the fungicide, close the valve to allow the chemical to remain in the system and soak for a period of time. 　　4. Replace the chemicals in the system every 30 days. 　　5. Before the system is put back into use, flush it with low-pressure water for one hour first, and then flush it with high-pressure water for about 10 minutes. Finally, check whether the produced water contains disinfectants.