All ActivityMost RecentMost LikesSolutionsRe: Winterization of RVIf you will be in and using your RV every day, then you shouldn’t need to worry. You will be heating the inside of your RV, which should keep the water inside the pipes in a liquid state. If it is really cold, you can open cabinet doors to heat the areas where the pipes go. Use holding tank heaters too, if your RV has them. You will need to do something with your water hose, otherwise it will freeze solid at low temps. Store it overnight, re-hookup when you wake up. Run a bit of water through it during the daytime. We have camped in temps down to 18 F with our class C, and never had any issues.