Soda Bottle Dripper

How we did it:
Materials List
- empty plastic soda bottle
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Drill a hole in the water bottle cap with the 1/8" drill bit. Ask an adult for help!
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Fill the bottle with water and turn it upside down next to the plant you want to water.
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Work the bottle into the soil to stand it up. Refill the bottle as needed to keep your plant happy.
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If the water drips too fast, partially block the hole with putty, or just make another dripper with a smaller drill bit. If it drips too slowly, drill the hole slightly larger.
Keep tinkering, and you'll have an amazing (and amazingly cheap) irrigation system running before you know it!