1. Multi-media filter and activated carbon filter should be washed at least once every three days. First clean the multi-media filter and then the activated carbon filter, and then backwash and then wash. When the media filter is backwashed, adjust the switch to the backwash position, the activated carbon filter switch maintains the normal water production position and cleans for 30 minutes; during the positive washing, adjust the switch to the forward washing position, the activated carbon filter switch maintains the normal water production position, Cleaning for 15min, and the RO switch is turned off during the cleaning process. Clean the activated carbon filter in the same way. After cleaning, first turn on the RO switch, and then put the activated carbon filter switch in the water making position.
　　 2. Rinse the RO membrane for 3 minutes every day when it is turned on and off. Wash the mechanical filter and activated carbon filter at least every 3 days. If the equipment will not be used for a long time, it is recommended to run at least 2 hours every 2 days. When the operating time reaches or exceeds the normal service life of the RO membrane, replace the RO membrane (generally it is better to replace it once every 1-3 years).
　　 3. Regularly conduct microbial testing to prevent scaling and bacterial growth in the system. If bacteria are found to exceed the standard, the pipe network and activated carbon filter should be sterilized.
　　 4. The mechanical filter needs to be replaced after 3 years of use, and the activated carbon filter needs to be replaced after 2 years of use. When the system runs for a period of time, the security filter will be blocked, and the filter should be replaced in time. Generally, it is replaced every 3 months; the scale inhibitor is prepared as a volume of scale inhibitor with 20 volumes of water; Replaced once a month, 10 inches, 1um.
　　 5. EDI system, under normal circumstances, the EDI system does not need to be shut down, it is fully automatic operation.
　　 6. The electrical components should pay attention to the working environment conditions (temperature, humidity). Under good conditions, the service life will be prolonged. The maintenance of electrical components should be repaired by professional technicians.