Thanks for the reply, If I used two cylinders and daisy chained them together to essentially make a four stage pump, would there be major problems due to lack of lubrication? There could be some residual lubrication I guess but that wouldn't last long. Also I have thought about using pilot...
I have recently gotten into paintball and am looking for a more permanent solution than going to the local dive shop to get my HPA bottle refilled because they are on the verge of shutting down so there will be no HPA sources for about 50 miles. I have done quite a bit with hydraulics and...