You are correct. Just years of beer and condensation that washing the lines wouldn't get to (mainly exterior) and that's exactly what happened. Any suggestions for a vinegar concentration ratio?
I would highly advise getting some kind of temperature controlled environment for fermentation. You would be amazed at how much difference it makes in the product quality. That being said, if you ferment at "ambient" temp and then keg to carbonate, I would not advise going from keg to growler...
I used to not rinse but now I do. I can tell the difference in the product. People who say once you rinse the sanitizer off your equipment is no longer sanitary isn't living in the real world. We are sanitizing, not sterilizing. The yeast can deal with small amounts of bacteria in the brew...
That's a decent price but I don't know if it's decent equipment. A new 5lb CO2 cylinder will cost you around $100. A good quality regulator will be $50-85 and a used ball lock keg in good shape will cost you $50. New ball lock fittings are about $5/ea and tubing is about $0.50/ft. for the good...
So my (6) Perlick 525SS faucets were getting pretty nasty so I decided to disassemble and clean all the stainless faucets and beer shanks. I separated the o-rings and plastic from the stainless, then soaked the stainless for a couple days in hot water and PBW. Drained the water off and they...