Winterize 2023 400 without antifreeze?

DaveC

I have used the blowout method on my 2017 Outback with no issues.  I am considering doing the same with my 2023 400. Are there any specific issues with the blowout method on the Nautilus equipped 400's? Does blowout clear the Nautilus system?  Am considering antifreeze in the toilet valve.  TAB wintered is in a non heated storage facility in Boise, Idaho.
Thanks

qhumberd

If you have traps in the sink plumbing and under the shower, those should have some antifreeze. Some of the models have Hepvo type drains rather than traps. Mine has some of each. The blade valve on the black tank and grey tank need some protection too.

Sharon_is_SAM

@DaveC - just so you know, nuCamp does not recommend using just the blow out method for models with the Nautilus.  I suspect there is a greater chance of water pooling in the Nautilus plumbing resulting in freeze damage.  Also, it is easy to fill only the plumbing lines with antifreeze, avoiding the fresh water tank and excessive rinsing in the spring.