Quote:
Originally Posted by cirelaw
There should be a slug you can fire and will do the dirty work!
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There actually is something like that. I don't know the name but it's used in auto engine intake manifolds, acts like Simichrome Polish, and is hydraulically pushed through the inlet & exhaust tracts. Looks like a big stream of toothpaste (which is also a polish) and is endless; the paste is picked up and pushed back through repeatedly. Gives a mirror surface to the passages.