This is my third RV, but my first 5th Wheel and my first Grand Design. On my other travel trailers there was a switch to energize the tank heaters for the potable water, grey, and black tanks. I see no switches for the tank heaters on my 320G. Does it have tank heaters, or does it rely on the heated underbelly to keep the tanks from freezing?
Thanks,
Joe
Thanks,
Joe