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Ms. Zhang, who lives in Tonghui hometown of Sihuidong, Chaoyang District, Beijing, has a school drinking water equipment, a desktop drinking water machine, a light blue drinking bucket on the white body, a filter element inside which contains activated carbon, hollow filament membrane and other filtering materials. "This water dispenser works very well. Usually the tap water is poured into it and the clean water is taken out."

The reporter approached the bucket and looked carefully, and found that a layer of green hair grew on the filter element of rural drinking water equipment. Reporters will inform Ms. Zhang of this situation, she looked carefully, but also very surprised, a layer of small green hair are almost pasted on the filter. "Usually drinking water, the taste is no doubt, so the protection of the drinking machine has no heart. I have not changed the filter element since I bought the water dispenser. "Light blue buckets, visually isolated, so consumers do not simply see the filter grew green hair." Professor Lingbo said, "Water dispensers must be regularly disinfected and protected. Especially the activated carbon inside, after adsorbing many organic substances in the water, the sun shines and becomes a hotbed for bacteria and algae reproduction in ultra-pure water treatment equipment. It takes less than half a year to grow a layer of green algae, resulting in secondary pollution.

In addition, many households have the same water purifier on the faucet. Ultrafiltration and activated carbon are usually used for a long time. Not only will the surface of the filter membrane "hide dirt and dirt", but also it can simply block the filter holes. Its ability to absorb harmful substances is also reduced. When the water output exceeds the rated water quantity of the water purifier, this is in the water. Some substances are not only not adsorbed, but also released into the water from the filter element.

Therefore, whether water cleaners, drinking machines or water cleaners, the top priority of the list is to buy standardized manufacturer's commodities and obtain the approval of the Ministry of Clean Water-related Commodities Clean and Safety Promise; the second is to change the core regularly, the first PP cotton can be used for three months, the second active carbon can be used for six months, the ultrafiltration can be used for one year, and RO reverse osmosis membrane usually used for two years. These equipment that need to be replaced can be purchased in the mall where drinking water machines are sold.

Small materials:

Water dispenser:

At present, there are two main types of water dispenser: water dispenser can filter out chlorine, impurities, rust, sediment from tap water, and also can adsorb some organic matter. Cleaner does not need power supply, there are five levels of filtration, the first level is filter core, the second and third levels are activated carbon, the fourth level is hollow filament membrane or ceramic filtration, the fifth level is exquisite activated carbon. The water purifier is equivalent to the upgrading equipment of the water purifier. It is more pure than the water filtered by the water purifier. The main reason is that it replaces the hollow filament membrane of the water purifier with the r/o reverse osmosis membrane filter element.

Water purifiers:

Ultrafiltration membrane and activated carbon are usually used to purify tap water.

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Cleaning Inner Gallbladder "7 Steps"

1. Block the power supply of the drinking water machine and remove the empty bucket. First use neutral detergent to clean the exterior of the fuselage. Dry cloth or alcohol cotton ball can be used to clean the water intake, tap, water tray and other parts.

2. Open the sewage pipe behind the water dispenser and all the drinking water switches to empty the remaining water.

3. Wipe off the white scale on the water tank with a clean cloth.

4. Fill the tank with clean water and put in the disinfectant tablets, and soak for 15 to 30 minutes.

5. Turn on all switches of the water dispenser and drain the disinfectant.

6. Continuously pour boiling water or barreled water, flush all the chambers of the water dispenser one after another, turn on all the switches, and drain the flushing liquid. Repeat several times until the water is chlorine-free.

7. Finally, tighten the drain valve, wipe the back wall of the switch with disinfectant, and complete the disinfection process.

Author: Hangzhou Shuidun Technology Co., Ltd.

Website: http://www.zjhzsd.com/

Key words: rural drinking water equipment, school drinking water equipment, ultra-pure water treatment equipment