[header] How to keep an rv water hose from freezing [title] Fill your fresh water holding tank with water, about 3/4 of the way full. [step] Having fresh water in your tank ensures you will have ample fresh water supplies after disconnecting your water hose, but by only filling 3/4 of the way, you leave room in the tank for expansion. [title] Disconnect your rv water hose. 
[step] Detach it from the rv connection and water supply line. Place it in a covered area away from cold.