Winterizing with air

[Grandesigner]

I hear you on the drains, but when they are the same length, you can't unscrew them as they interfere with each other.
As for the heater bypass, I guess it's really not required as long as it is drained and then re-plugged so the air can get to the faucets? I would then unplug it again for the winter...

[Hoopy Frood]

Seems to me that if the water heater bypass isn't used, the antifreeze will try to fill the water heater. That's the way mine works.

[Grandesigner]

Well the topic says 'air', but nobody has said how to bypass the heater...

[4x4dually]

Well the topic says 'air', but nobody has said how to bypass the heater...

On our old trailer, I just blew it out through the heater then pulled the plug when done and left it out all winter. The new one has on demand so there isn't a tank and I just blow through it.

No reason to by pass the heater if you are using air. Just know that you have to have the plug in it so it will force water out the hot lines. The plug will dump all your pressure.

[Grandesigner]

I think that's what I wrote in post 31, thanks for confirming.
As for the bypass with the nautilus P1 in the newer models, one youtube vid shows that the red valve being horizontal accomplishes that function. I'll need to confirm that on my own...

[Grandesigner]

Well the job is not done until water runs down your sleeve from the low point drains, lol
Used city mode with the red valve horizontal.

[Scott'n'Wendy]

Well the job is not done until water runs down your sleeve from the low point drains, lol
Used city mode with the red valve horizontal.

Never realized you would need to 'winterize' in central NM. I wouldn't have thought it would get cold enough to freeze anything hard enough to crack a fitting or line.

[Hoopy Frood]

We were in Angel Fire, New Mexico, and it got cold enough to freeze. In fact there's a ski resort there. It's all in the altitude.

[MoonShadow_1911]

Never realized you would need to 'winterize' in central NM. I wouldn't have thought it would get cold enough to freeze anything hard enough to crack a fitting or line.

Living in central New Mexico, I will say we usually don't get a hard freeze, where temperature stay before 40° F for at least 72 hours, we do have nights that get down to the mid to low 20's.

EDIT: All that to say, I winterize my 320MKS with air.

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[Grandesigner]

Never realized you would need to 'winterize' in central NM. I wouldn't have thought it would get cold enough to freeze anything hard enough to crack a fitting or line.

Come on down...already been below freezing and get into the teens easily. I'm at 5000 ft