RV Water Conservation: Master the Art of the Long Stay

When you are tethered to "city water" at a luxury RV resort, you don't have to think about water usage. But the second you pull the plug to go dry camping in the national forest, every single drop of water becomes a precious commodity.

For boondockers, water is almost always the limiting factor that dictates when it is time to break camp and drive back to civilization. (Usually, the limiting factor isn't even running out of fresh water—it's that the gray tank is full!)

With the right habits and a few minor hardware upgrades, you can easily stretch a standard 40-gallon tank to last two adults a full week. Here is how you do it.

Bathroom & Shower Hacks

The bathroom accounts for roughly 75% of all water usage in a typical RV. If you want to conserve water, this is the battleground.

• Perfect the Navy Shower: This is non-negotiable. Turn the water on for 15 seconds to get entirely wet. Turn the water off using the button on your shower wand. Lather up your hair and body. Turn the water back on for 45 seconds to rinse. You just showered using 1.5 gallons of water instead of 6.
• Catch the Warm-up Water: Do you let the shower run for 30 seconds while waiting for the water heater to get hot? Catch that perfectly clean, cold water in a bucket or a large pitcher. Use it for boiling pasta, making coffee, or flushing the toilet later.
• Upgrade the Shower Head: Factory RV showerheads unnecessarily dump water. Upgrade to an aerator showerhead like the famous Oxygenics Fury. It injects air into the water stream, giving you the feeling of high pressure while using a fraction of the flow rate.
• The "If It's Yellow..." Rule: It's a camping classic for a reason. If you flush every single time you pee, you are needlessly firing clean water into your black tank (and filling it up faster).
• Use a Cup for Brushing Teeth: Never let the tap run while brushing. Fill a small cup with a few ounces of water to wet your brush and rinse your mouth.

Kitchen & Cooking Conservation

Doing dishes is the other massive water-waster. It also fills up your gray tank with food particulates which can smell terrible.

• The Two-Basin Method: Never wash dishes under a running faucet. Get two plastic wash basins that fit in your sink. Put hot soapy water in one, and a couple of inches of clean rinse water in the other.
• Spray Bottles are Magic: For plates that aren't heavily soiled, skip the sink entirely. Keep a spray bottle filled with a mix of water and Dr. Bronner's soap. Spray the plate, wipe it perfectly clean with a paper towel, and throw the towel away. Zero water goes down the drain!
• One-Pot Meals: Change your meal planning. Cooking a massive feast with three saute pans, a boiling pot, and a strainer means a massive cleanup. Rely on sheet-pan meals, slow cookers, and grilling outside.
• Paper Plates (Sometimes): Purists might hate it for environmental reasons, but when you are deep in the desert and water is running dangerously low, switching to high-quality, compostable paper plates saves gallons of water per day.

Plumbing & Hardware Checks

Sometimes, you aren't the one wasting water—your RV is.

• Check for Micro-Leaks: RVs bounce down the highway, and PEX fittings loosen. Turn your water pump on and listen. If no faucets are open, the pump should remain perfectly silent. If the pump "burps" every 10 or 20 minutes, you have a leak somewhere that needs tightening before it rots your floorboards and drains your tank.
• Insulate Your Water Heater Lines: If your pipes are long and uninsulated, it takes a long time for hot water to reach the shower. Slipping foam pipe insulation over the PEX tubing in your basement speeds up delivery, saving you from dumping "waiting water" down the drain.
• Bring a Portable Gray Water Tote: If your fresh tank is larger than your gray tank (common on travel trailers), you will fill your waste tank before you run out of fresh water. Buying a standalone "Rhino Tote" allows you to drain a few gallons of gray water and haul it away without breaking camp.