The valve system I put in is pretty simple, I did use "BALL TYPE" valves and brass fittings made by "Swage-Lok" (makes it very hard not to see which tank is valved in and which is not).
Also takes advantage of the pressure relief (blow back) on both regulators, simple rule is that "If You Smell Gas for More Than A Few Seconds" after switching then you'd better be checking to see what ain't right !
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DE: John W9WLS
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