Apologies in advance: I only have finished pictures, and they were taken with a cell phone camera with bad photo quality.
Remove the tank/pump setup from the shell. Cut off the every tank but the top, first-firing one.
Pump those three tubing segments full of your glue(s) of choice.
And that's essentially it. Barrel the tank that's left however you want (May I recommend an RSCB?) and put it back into the shell. Here, you have a choice of where you want to put the tank. It's a preference call. I chose the top barrel.
Screw it together.
There you go. This thing works like a singled 2k, taking 3 pumps and shooting ~80 feet. This also frees up a TON of shell space for you to put stuff in.
Edited by 1337, 28 September 2009 - 03:38 PM.