Dump out that vinegar solution. Do not just leave it in there and call it a day. You’ll be drinking vinegar-flavored water for three weeks, and your coffee will taste like a pickle feud. Fill the reservoir with plain cold water, then drain it completely. Do this three or four times until you don’t smell vinegar anymore.
While you’re at it, run plain water through the spigots too. Fill a cup, dump it, repeat. Yes, it’s tedious. But your future self will thank you when you’re chugging crisp, pickle-free water at 3 AM.