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  1. #1
    n00b e-Man's Avatar
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    Bike pump air hoses question

    A little off topic from bikes, but involves a bike related accessory. I have two floor pumps at home, one works and the other was given to me after my dad lost a piece (kept it in case I broke a part on my pump). I am going to try to launch some water bottle rockets with my pump, but I am a little nervous about standing too close when the bottles pop off. I thought about unscrewing the hoses and combining them together to make a longer, safer hose for this project. Not sure what connector would work in this case. Anyone ever tried coupling two lines together?
    Daily Rider: 2004 GT Avalanche 3.0

    Custom Ride: 1980's Murray Monterey Beach Cruiser

  2. #2
    Junior Member
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    This isn't an answer but call up a couple hardware stores and ask for the more experienced guys, they might know. Also try a few plumbing stores.

  3. #3
    Senior Member
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    barbed nipple and two hose clamps. Local hardware store should have them.
    brasshosebarbcoupling.jpg
    DP
    04 Specialized Expedition Sport
    08 Surly LHT

  4. #4
    n00b e-Man's Avatar
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    sweet, thanks to you both
    Daily Rider: 2004 GT Avalanche 3.0

    Custom Ride: 1980's Murray Monterey Beach Cruiser

  5. #5
    rebmeM roineS JanMM's Avatar
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    Be sure to wear safety glasses for the launch..............................
    RANS V3 (steel), RANS V-Rex, RANS Screamer

  6. #6
    Senior Member tpelle's Avatar
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    I don't think there's any danger there - the most that might happen is that you might get wet!

    My son did this as part of a physics class project in high school. As I recall you pumped the air in while the bottle was locked on the stand, then you "pulled the trigger" via a string from a "safe" distance away. The lock/trigger was a u-shaped piece of plastic that locked onto the ring that is just under the cap of a two-liter bottle.

    (Anybody know what that ring is for? At the bottling plant, the bottles, before filling, are conveyed along by hanging them by that ring in a sort of tube with a slot in the bottom. The tube is arranged with a bunch of angled jets on top that blow compressed air, and the empty bottles are just blown along the tube.)
    Steel Club = BF-STL-00064

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