I just hooked up a new two-tap faucet system in my fridge downstairs that's fantastic, but I am experiencing a plastic off-taste when I let the beer sit for a day or so in the lines (about 5 feet). Last night and tonight I even experimented with tasting the first couple ounces after sitting over night vs. getting it from the keg - a definite plastic taste vs. no plastic taste.
Is there any way to pre-clean these lines so they don't have this taste or do I just have to wait for the lines to get un-plasticy?