Step 4: Glue the Launcher Parts Together

cotton swab soaking PVC ends with PVC pipe cleaner
Photo: Ask This Old House TV
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Line up the pipe sections and connectors in the order in which they will be assembled: solid end cap, 18-inch piece, tee, 78-inch piece, and the 2-inch piece connected to the leg of the tee.

Using PVC pipe cleaner, clean both parts of each connection: the outside of the pipe and the inside of the fitting. One by one, glue the connections together with PVC pipe cement, holding the parts together for a few seconds as the cement sets.

NOTE: Always work in a well-ventilated area when working with pipe cement.
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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)