1, the water dispenser has been useless for a long time. First, unscrew the drain of the water dispenser (in order to let residual water flow out), screw on the drain of the water dispenser, pour a bottle of white vinegar into the water dispenser (white vinegar can kill bacteria inside the water dispenser), let it stand for five minutes, remove the cover of the water dispenser, then pour a pot of boiling water into the water dispenser (boiling water can kill bacteria), open the drain of the water dispenser, and discharge the wastewater.

2. The drinking machine is a device for heating or cooling bottled pure water (or mineral water) for people to drink, and the bottled water is placed above the machine to cooperate with it.

3. From the functional point of view, drinking fountains are mainly divided into three types: warm type, ice-hot type and ice-warm type, which will provide water with different temperatures for people to drink. The machine itself has refrigeration and cooling functions, or heating and heat preservation functions. There are many styles of drinking fountains, such as nozzle type and press type.

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