Hi Tim:
Thanks for the reply.
I am asking about both. I opened some old tanks that were not performing very well. I discovered a black and hard deposits on the brass tubing and extending into the tubing. This was quite difficult to remove! I have also seen external pick up an vent lines clogged with this same corruption.
Hey Tim, what makes you think that I have hoards of tanks and stutters? Lol
I know a chap who does nothing to his engines after they have been run. No cleaning or oil. He has been treating his engines in this manner for decades. They start in a few flips and run perfectly! I can not argue with that!
Be well,
Frank McCune