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Air delivery system using pvc

Hi,
I am a geocacher and I recently saw a youtube video of a cache container that was a 2 inch PVC pipe.  At the bottom, the cap had a tire valve in it.  When you pumped up the container, a pill bottle came out the top.  I have attempt to build something like this but nothing seems to work.  The pill bottle will not rise.  Can anyone help me with what I am doing wrong?

Thanks,
Kent

46
Jayefuu says: Nov 11, 2012. 2:41 PM
Slightly related: I saw a good one where by holding your hand over the bottom of a pipe and filling it with water, the cache would float to the top.
17
blkhawk says: Nov 11, 2012. 2:38 PM
Could you post a link to the video?
10
Cyclone1764 says: Nov 11, 2012. 10:58 AM
im not real great when it comes to all this but it could be the air pressure, a leake or the weight of the bottol, alot of youtube stuff is fake aswell ;)
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