We just got a 2014 37dt. The drains are backwards. The small valve is the black tank. The large valve is the gray. Has anyone else had this?
My 37ND has 3 tanks. The Black and the Main gray flow into the main drain and the handles are the correct colors. The other gray tank which handles the passenger side of the coach is located further back and has a black, rather than gray, handle.
US Army (Ret)
2020 Entegra Accolade 37TS
2019 Jeep Grand Cherokee Trailhawk (Toad)
FMCA - F432054
I have the bath & a half model so the coach has two sets of tanks. The half bath gray/black tank monitor panel indicator lights were reverse wired.... Black water use showed up on the gray tank indicator and gray water use showed up on black indicator. To make matters worse, the half bath sink is plumbed directly to the 'black water' tank, when you would think sink water should be gray. Not a problem unless you use the sink alot. But excess water in the black tank is a good thing - you'll just have to dump more often. Dealer finally made the wire swap at our request...... Joe