New camper frozen water lines

Quick update. The bottom of the camper is covered from the factory so the tanks and all are covered. The furnace duct runs up inside the bottom cover under the camper. I plugged the camper in last night and left the furnace running all night set at 60 degrees. I went out to the camper this morning and was able to get a great flow of antifreeze out of the toilet, hot and cold out of the bathroom sink and bathtub faucet. The water heater was fine as that was already drained and had some antifreeze in it. I had also gotten antifreeze out of both sides of the kitchen sink before the freezing weather hit. Like I said in my first post I had started the winterizing before the freezing weather so I was able to get the water pump, water heater, and kitchen faucet before anything froze. The only things I still cannot get antifreeze out of yet this morning was the outside spray port, this doesn't have a shower just a port to attach a garden hose with a fitting that looks like air line connector. The other one is the fresh water high pressure hook up.

Once I had flow out of everything else in the camper I left the pump on to see if I would lose pressure with all the outlets off to see if anything was leaking. The pump never came back on so I am keeping my fingers crossed on the spray port and the fresh water high pressure hook up.

Thanks for all the replies. This is kinda nerve racking for me. Hopefully if something does break on the spray port or the fresh water hook up outside it isn't too crazy expensive to fix.