I would take a look inside the curb-side pass-through storage area, to the left. You might find a little panel that says "low point drains" inside the panel, which you may have to take screws out of to access. The other one should be on the street-side behind the wheels and a little under the trailer. It is the one that drains the fresh-water tank. You should find two of them up front. That's where they all are in my 2012 26.5 HT RLS.
2012 GMC 2500HD D/A Crewcab
2012 Jayco Eagle SuperLite HT 26.5 RLS
2009 Crestliner Superhawk 1900
2013 Polaris Sportsman 550 EXP
2008 Polaris Sportsman 700 X2