Dumb question

[lodiguy]

After my last campout I drained the water heater. Bypassed it and blew out the lines. I plan on using the trailer on Christmas.
Should I add anti freeze now? Or wait after I use for the last time? It will get below freezing here in Northern California between now and then.
The only thing with water in it currently is 5 gallons in the fresh tank and the "P" traps.
Thanks.

[DJL1967]

Guessing your grey and black tanks are empty too all I would do is add antifreeze to the traps and drain the fresh tank and you should be good for cold temps.

[Jagiven]

Question, how cold for how long?

Might consider blowing out the lines and just pouring antifreeze down the drains.

Make sure to drain the tanks. The outside shower will freeze first.

[Cosmik Debris]

You might consider running small electric heater in it with the cabinet doors open, just to keep it above extreme cold.