I noticed a lot of you guys use brass or pvc for your barrels. If I may ask, why not use copper? For some stupid reason the major hardware stores around here dont carry brass, so i switched to copper. Let me tell you a 1/2" copper barrel seems to work quite well with my stefans. I did ompa's titan mod with copper and at 30 pumps they embed in cardboard. I dunno, but you guys can flame away.
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