Many newbie RV dry campers may be disappointed to find that their fresh water only lasted two or three days, because they used it as if they had an unlimited supply, like at their house, or a full hook up campground. But there are tricks to making your fresh water last longer, allowing you to spend more time boondocking, and less time worrying about dumping and filling tanks.
The general rule of thumb is, 3 gallons of water per day, per person, for drinking and washing, but you can make it less, with some smart water conservation.
1- The first and most important rule is, never let water just run down the drain! When you run up the hot water, catch the initial cool water that comes out in your water filter or tea kettle. Don’t waste a drop!
2- A second important thing you can do to save water is, use paper plates, bowls and cups. These don’t need to be washed, they can be thrown into the campfire.
3- Don’t fill the sink to wash any dishes, pots or pans. Wash them individually, and you can wash any utensils in a soapy cooking pot or coffee cup that you are washing, to get them clean.
4- Save the little bit of soapy water you’ve generated washing dishes, to flush the toilet.
5- Put off showering until you really, really need it, and then, make it quick! And once again, when running up hot water for a shower, catch it in a water filter or tea kettle until it is hot.
6- Between showers, freshen up with baby wipes.
7- Use hand sanitizer and paper towels to clean hands.
8- If you have long hair, get a shampoo and conditioner-in one, to reduce the amount of water it takes to rinse your hair.
9- Pre-cook any meats, and freeze it, while you are at a full hook up campground, where you will have ample hot water to wash everything up. If you avoid paid campgrounds, buy meat that is already cooked.
10- Carry extra water in 5-7 gallon jugs. If you are towing a car, you can keep these in the car, and possibly use them to make fresh water runs, if there is a source nearby.