The wastewater discharged by the water purifier is determined by the characteristics of RO membrane, because the filtration accuracy of RO membrane is very high, up to one ten thousandth of a micron. In order to prolong the service life of RO membrane, it is necessary to wash the surface of RO membrane with a large amount of water to bring out particles and colloidal impurities attached to the membrane surface, so as to prevent pollutants from adhering to the surface and affect the permeation effect. Therefore, reverse osmosis water purifier uses RO membrane to produce wastewater.
If the water purifier has been discharging waste water, it may be a failure, and the reasons for the failure are as follows:
1, high voltage switch
It is possible that there is something wrong with the high-voltage switch on the water purifier, because the working principle of the water purifier is that it needs to continuously produce wastewater and purified water. However, under normal working conditions, after the machine is filled with water, the high-voltage switch should be automatically turned off and the power supply disconnected. Now there is something wrong with the high-voltage switch, and the machine will continue to produce waste water.
2. Water inlet valve
It is also possible that there is something wrong with the water inlet valve of the water purifier, because as long as the machine is full of water, the water inlet valve should be automatically closed, mainly to prevent water from being wasted. At this time, there is something wrong with the water inlet valve, and the machine will not feel that the water inside is full, so it will keep generating new water and then waste it.
Choose a water purifier according to the water quality.
The hardness of water quality is different in different regions, so you should know how your water quality is before buying. The tap water quality in most urban areas is good, so you can choose a filter water purifier. For areas with serious pollution such as chlorine in water and heavy taste, or families with direct drinking needs, you can buy reverse osmosis water purifiers.
For example, in the high-hardness water quality in northern China and limestone areas in southern China, the content of calcium and magnesium ions in water is high and it is easy to scale. So you should buy an advanced filtration water purifier, ion exchange resin filter. For the city tap water with chlorine, heavy odor and high organic content, you can choose a household water purifier with more activated carbon load.