How To Make Automatic Water Dispenser * DIY Auto Desk Water Cooler

How To Make Automatic Water Dispenser * DIY Auto Desk Water Cooler
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How it works: when you open the toothpaste cap the air comes through the drinking straw and pushes on the water inside the jar. So the water flows through the hole in the jar's cap. When the toothpaste cap is closed water does not flow because the air doe

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