This is our 2nd year with the 5th Wheel, we didn't make a point to drain that last year. We were lucky, kind of a pain to get to it as well. When we winterize last year, we empty all visible drains and add RV winter antifreeze to the lines and in p traps. We should check that spot this year or blow out the lines, that should empty it.
Kim & Randy Holmes
2016 F350 Turbo Diesel FX4
2014 Palomino Sabre 33 CKTS
(2012: 10); (2013: 17); (2014: 33); (2015: 43);