I have been away from homebrewing for most of the last 3 years taking care of my dad who recently passed in October. One of the things that needed to be done was replacing the tap lines on my Keezer. The old lines were just nasty with some of them having standing beer in them for over 2 years. Anyway the new line came this week, which are made of the usual PVC, and have the characteristic new PVC odor to them. I was wondering if there is anything I should flush them with before I put homebrew through them?