The equation is simple: 2 winners + 2 D.C. United tickets each = game day on 8/29 at Audi Field. Want in? Follow @essentiawater and @dcunited, like this post, and tag the biggest soccer fan you know! #ChangeTheEquation DISCLAIMER: NO PURCHASE NECESSARY. Open to 50 US & DC, 18+. Ends 11:59pm EST on 7/27. Prize consists of two tickets only; travel, lodging, and any other expenses are not included by either Essentia Water or D.C. United. For official rules, see link in our bio.