2023 tab 400. How to blow out water heater?

ThelmaAndLouise

Can someone please send me a photo of the water heater drain and how I blow it out?

pthomas745

The "Alde Hot Water Tank" only needs to be drained.  Some of the Alde tank is drained with the Cold Water Low Point drain, there on the side of the trailer behind the wheel.  

The other drain(s) for the Alde hot water tank is under the bed on the driver's side.  That is where the two Famous Yellow Flapper Valves are.  One Yellow Valve is right next to the Alde, and one Yellow Valve is next to the "Alde Flow" tank.  They need to be flipped "up" to drain both of those tanks. Picture below of a 2021 400.  The Valves are pointing "up" meaning the tanks have drained.  

The Alde tank does not get "blown out", or has antifreeze added to it during winterizing.  If you follow the Nautilus instructions, the "Red Handle" position determines whether anything goes through the "hot water heater", which for us means the Alde hot water tank.  In the winterizing or sanitizing sections of the Nautilus manual, the settings for the Red Handle are "sideways", or horizontal, which prevents water from going to the Alde tank when adding fluids through the city water connection. See the "Red Handle" note below from the Manual page.

You will not find much discussion on the NuCamp winterizing pages about the Yellow valves.  The other comments always include confusion about leaving them open or closed, etc.  It really doesn't matter whether they are closed or not, as long as you know you winterized with the handles in the proper position.If I had a 400, I would close them after the winterizing procedure is done to save another trip under that bed.  In the spring when they have to be closed after de-winterizing and filling the trailer with water.