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Old 09-24-2011, 03:57 AM   #34
tes
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Join Date: Jul 2010
Posts: 196
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Here it is:

There is a pressure tank marketed to tennis clubs that sells for $5000 bucks.
Check out this link.
http://www.rebounces.com/
Not sure why they use CO2 but apparently they do.
I am not an engineer so I don't like to give advise that could be potentialy dangerous.
What I will do is give you the patent filing for the machine they sell and let you draw your own conlusions.
http://www.faqs.org/patents/app/20100307637
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