1. Do not perform professional deep sterilization and descaling cleaning on the water dispenser for a long time;
2. Changing the water causes the water inlet to be in contact with the air;
3. The storage space is small or unclean, the air is not convective, and the ground is not often cleaned;
UF Water Filtration System W260-2C
4. Improper temperature, placed in a cold and humid place or in direct sunlight, can easily lead to bacterial reproduction;
5. The quality of drinking water is unqualified or contains bacteria;
6. The maintenance of the water dispenser is not good enough, and the poor sealing will cause bacterial invasion;
7. There is too much water stored in the water tank and it is not drinkable for a long time;
8. Long-term uninterrupted electricity "long-term burning" (enterprises and institutions basically have uninterrupted electricity, and the frequency of drinking water is very high);
9. Cleaning with chemicals with chemical ingredients (water delivery staff or yourself);
10. If the water is not within the shelf life, drink it up.