I have a 2019 Thor Gemini 23TR. I'm winterizing it. I drained the water tank by opening the 2 valves in the back of the coach. The holding tanks are empty. I put antifreeze in the water tank and then ran the faucets. They all ran until the pink showed up. This RV has a tankless water heater. Is there anything I need to do to drain its lines. I can't see any other valves but I'd like to make sure. I tried finding schematics showing the water lines but could find nothing. I sure would appreciate help on this.
Thanks. I dumped it in the tank since I didn't have a pick up tube and wanted to get it done. I know I'll have to clean out the holding tank well next spring. I did find a couple of valves under the drawer located under the stove top. i opened those and hear water dump. A while back I saw a schematic and hoped to get it again and print it out this time. I'd like to know where all the wires and water lines are.