interesting DIY piston tank without piston "stickout"
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Guess it would work with little pressure differential, but assuming a small piston is going in a small boat, I am guessing that the pressure is going to build up quickly on the air side when diving. I'd love to know how the "seal" in the rubber stopper holds up.The Nautilus Drydocks - Exceptional Products for the World of R/C Submarines - www.nautilusdrydocks.com
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