Step 5: Make a Seal for the Bottle

lit birthday candle heats up piece of PVC
Photo: Ask This Old House TV
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Mark the pipe assembly 11 inches from the long open end. Using the flame of a birthday candle, heat the pipe evenly at this mark until it becomes soft. Then push the pipe inward to create a slight bulge. Hold the pipe straight until it has cooled and the bulge is no longer soft. This bulge will create a seal between the pipe and the soda bottle.
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    Tools List

    • hacksaw
      hacksaw
    • drill
      drill/driver fitted with a ½-inch bit
    • adjustable pliers
      pliers
    • utility scissors
      scissors

    Shopping List

    1. 10-foot length of ½-inch PVC pipe
    2. ½-inch PVC tee
    3. two ½-inch PVC end caps
    4. 2-inch-long scrap of 1½-inch PVC pipe
    5. PVC pipe cleaner
    6. PVC pipe cement
    7. replacement valve for a tubeless tire
    8. plastic cable ties, aka zip ties
    9. birthday candle
    10. duct tape
    11. clamp for 1½-inch hose
    12. two 2-liter soda bottles
    13. string (regular twine or cotton string is fine)