The only place to put the shank washer that makes sense to me is between the nipple (tailpiece) and shank. The nut then pulls the two together, squishing the washer. But that puts the beer in contact with thes rubber/smelly washers.... Is this the right place? I makes a good seal but the reason I ask is:
I've had my setup up and running for a couple of weeks now and find that the first ounce or two (the warm stuff in the lines) tastes really "off".
To make sure that it actually tasted different, I waited 24 hours for the beer in the line to warm up, pulled 2 oz in one glass "A", then pulled a whole pint (which I drank
), then pulled 2 oz in glass "B". I let them sit for an hour to warm up. The Glass "B" (the second glass) tasted 'normal' but warm. Glass "A" which spent the night in the lines tasted weird. Kind of chemically and 'off' - almost sour. I used a homemade light lager on purpose so that any weird taste would show up.
I figured that beer left in the lines for 24+ hours would be warm but not taste "off" just from being in the lines. Is this normal? If yes, why? It's a closed system. Is the rubber in various spots to blame?
FWIW, I'm putting together a system to air cool the 4' from freezer to tap so that hopefully it doesn't happen, but I'm still curious. If it's still going to happen even with cooled lines (ie: the first oz or two will be 'off' but cold) let me know and I won't bother with the line cooling!