Quote:
Originally Posted by PAR_WIG1350
For the restricted tank opening, you could precharge a smaller, separate volume outside of the tank from the 1/2" NPT port and have a larger outlet from that volume to the firing valve. It might even be beneficial to further reduce the size of the opening between the main tank and the precharge tank to allow for a smaller, and possibly less expensive, valve between them. If you reduce it far enough, you might not need a valve there, but it might slow down your firing rate.
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That's exactly what I have done and it works pretty well.
https://www.youtube.com/watch?v=vC1d51Z6fuY
One of the big things you have to remember is to make sure that your t-shirts are not rolled up too tight or too loose or it will not shoot as far.