A military shower, also known as a Navy shower or combat shower, is a water-conserving technique commonly used by RVers to manage limited freshwater and hot water supplies. The method involves turning the water off while lathering or shampooing and only turning it back on briefly to rinse off. This approach significantly reduces water usage, which is crucial when dry camping (boondocking) without access to hookups, as RV freshwater tanks are typically small, holding only 20-60 gallons depending on the RV class. The technique conserves both freshwater and the energy required to heat it, making it an efficient solution for maintaining hygiene while on the road. The practice originated in the military, particularly on navy ships where freshwater was scarce, and has since become a popular method for environmentalists and those in water-scarce situations.
