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This post was last edited by hesonchang214 on 2019-10-29 at 17:35. 1. There is no water left in the water storage tank; water is currently being generated using an EDI device, which is why the flow rate of the water output is low. Wait about 2 hours before opening it for use. 2. The motor is not working, and the water pressure is low. Check whether the motor is working properly. 3. The RO membrane is slightly clogged, possibly due to a lack of cleaning over an extended period of time. In this case, rinse the RO membrane first; if that doesn’t work, the RO membrane should be replaced promptly. First: The filter element of the pre-treatment system needs to be replaced. If the previous filter elements are all clogged, then no water will flow in, and as a result, no water will emerge from the later sections. Solution: Replace the filter element. Second: The RO membrane gets clogged. Over time, as it is used, the RO membrane gradually becomes clogged, which results in a decreasing water production volume; generally, it needs to be replaced every year or so. During operation, EDI ultra-pure water systems generally generate wastewater. Some users may consider this waste and take measures to block or reduce the discharge of such wastewater; however, such actions can directly render the RO reverse osmosis membranes ineffective, preventing water production. It is recommended to adjust the amount of wastewater discharged according to the local water quality and the recommendations of the EDI ultra-pure water system manufacturer, and not to arbitrarily reduce the wastewater discharge volume.