Winter boondocking in a Class C

We usually don't boondock in there winter, but we have camped without de-winterizing our RV. We normally will go to a park with hookups, but only hookup the electric. We park near a bathhouse and use it for all our plumbing (toilet/shower) needs. We take an electric space heater and use it to warm the coach. We will set the furnace down on low in case the electric heater can't keep up. We use paper products and disposable cutlery. We have a couple Deer Park jugs that we reuse. We normally fill them up at home and take with us. We also may take some bottled water for drinking. If we have a pot or pan to wash, we will get water from the spigot outside and heat up on the stove. We have a couple of dishpans n the cupboard that we pull out to wash dishes in, if we need to. We dump the dirty dish washer down the sewer hole outside.

I saw on the Roadtreking youtube channel where one of the service techs mentioned flushing the toilet with antifreeze. We've never done it, but for those that boondocks, it might be something feasible.