Pure water equipment is a large equipment composed of many components, all of which play a unique role to meet the requirements of water quality. What should be replaced if the equipment has been used for a year?

The service life of filter elements varies for different pure water equipment. For example, the service life of PP cotton filter elements is around 3-6 months, the service life of filter elements is around 6-12 months, and the service life of ultrafiltration membranes or RO reverse osmosis filter elements is around 24 months. Users need to replace the filter element on time based on the quality of the local drinking water body and the water flow rate, otherwise the water purifier will become a sewage collector, which will actually harm their health.

1. The replacement cycle time for pure water equipment stone sand is 8-24 months, depending on the condition of the source water body. Referring to the inlet and outlet pressure difference of the multi substance filtration device, the system software has been cleaned several times but the pressure difference cannot be reduced to within normal range. It is proposed to replace it; The SDI value of the water body with water production capacity is greater than 5. After several cleanups by the system software, the SDI value cannot be reduced to all normal levels. It is proposed to replace it; The service life of Shiyingsha has already exceeded the service life provided by the manufacturer, and it is proposed to replace it.

2. The replacement cycle time of activated carbon is 8-24 months, depending on the condition of the source water body. Referring to the inlet and outlet pressure difference of the activated carbon filter, the system software has been cleaned several times and the pressure difference cannot be reduced to within normal range. It is proposed to replace it; The catalytic reaction rate of activated carbon reduces the composition of the carbon, resulting in a permanganate index value greater than 0.05mg/L in the water production volume. It is proposed to replace it; The service life of activated carbon has already exceeded the service life provided by the manufacturer, and it is proposed to replace it.

3. The replacement cycle time for epoxy resin is 8-24 months, depending on the condition of the source water body. Referring to the inlet and outlet pressure difference of the softener, the system software has been cleaned several times and the pressure difference cannot be reduced to within normal range. It is proposed to replace it; The epoxy resin has been poisoned, and the air oxidation has caused the water yield and water strength to be greater than 3Mg/L. After the system software is reconstructed, the hardness of the produced water cannot be reduced to all normal levels. It is proposed to replace it; The usage period of epoxy resin has already exceeded the service life provided by the manufacturer, and it is proposed to replace it.

4. The replacement cycle time of RO reverse osmosis membrane for pure water equipment is 2-4 years, depending on the condition of the water body. The characteristics of RO reverse osmosis membrane have decreased, and after chemical water treatment, the characteristics cannot reach all normal levels. It is proposed to replace it; When the RO reverse osmosis membrane cannot recover damage, it endangers the operation of the system software. It is proposed to replace it; The service life of RO reverse osmosis membrane has already exceeded the service life provided by the manufacturer. It is proposed to replace it.

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