Bob asked me to post this on his behalf. He has one of his compressor type cylinders for sale- I'm not sure of the size, but this cylinder uses an onboard compressor system to move the air. He is asking 450 pounds for it...for more information on its capabilities, size, etc. email Bob at email@example.com or OTWDES@hotmail.com
This system is the predecessor to his current pump system. I just spoke with Bob yesterday... Bob has also offered a finished version of the old Seehund he sold (about 6 years ago) with this cylinder for an additional 100 pounds. Someone could have a complete boat and ballast system with this set up. The seehund is finished in a camo paint job, and has been sitting on his shelf...anyone interested, contact Bob.