I was thinking about using that clear plastic hose that you use in fish tanks/beer brewing/other things involving alcohol, but honestly I've been running the same bumper for weeks now (it's starting to tear now cause it got pinched).
Here's my suggestion for prolonging the life of the bumper; don't adjust the recock so high. I know how Evil suggests it be adjusted...and that works, but it is hard on the bumper. Basically, if you're out playing and have either a tank that will get you decent amount of shots (basically anything larger than a 68/3000) or have a play style that doesn't require you to lay out alot of paint....set the recock low.
For me personally, running about 295fps, setting the recock 1.5-1.75 turns out from bottom will get me good shots down to about 800psi. From that point on the marker will sometimes not recock, but I've also ran thru pretty much all the paint I carry into a game. Now granted for tournaments I will be setting the recock higher so I can run my tank right into the ground and get that extra pod...but short of that...why bother?
I'll prolly change out the bumper for some soft clear plastic hose in the next week, just to see how it works. I'll keep you guys posted.