Last updated: July 3, 2026
Fresh Gray Water Holding Tank Combo - RV & Camper - BPA Free (16 & 21 Gallon)
Building a Van Life Water System: Storage, Pumps & Filtration
A functional water system is essential for comfortable van life. Whether you want a simple gravity-fed setup or a pressurized system with hot water, the core components are the same: a fresh water tank, a pump, supply lines, and a sink. Getting this right means reliable access to clean water for drinking, cooking, and washing—anywhere you park.
1. WaterPORT Day Tank (Pressurized Portable Water System)
The WaterPORT Day Tank is a pressurized water container that acts as a standalone water system. Fill it, pressurize it with a hand pump, and connect it to your sink or shower. It’s a perfect solution for simpler builds or as a supplemental water source, requiring no 12V pump or complex plumbing.
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SEAFLO 33-Series Water Pump and Accumulator Tank System - 12V DC, 3.0 GPM, 45 PSI, 0.2 Gallon Tank - Reduces Cycling For Marine, Boat, RV, Off-Grid Applications- 4-Year Warranty! CE & RoHS Certified
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2. Shurflo 2088 12V Water Pump
The Shurflo 2088 is the most popular 12V demand pump for van and RV water systems. It self-primes, auto-cycles based on demand, and delivers consistent 3.5 GPM flow. Pair it with a freshwater tank, a pressure accumulator, and a filter for a complete pressurized system.
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Fresh Gray Water Holding Tank Combo - RV & Camper - BPA Free (16 & 21 Gallon)
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3. Watts Premier WP-5 Water Filtration System
Clean drinking water on the road requires a good filter. Under-sink inline filters from Watts Premier or similar brands remove sediment, chlorine, and common contaminants from refilled water tanks. Install one between your tank and faucet for consistently clean, great-tasting water.
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GLACIER FRESH Replacement for Technology RV Water Filtration System, 0.2 Micron Camper Water Filter with Compact 5 Inch Filter, 3-Stage Premium RV Water Filtration System for RVs, Campers and Boats
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Buying Guide: Van Water System Planning
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- Tank Size: 15–30 gallons is standard for solo or couple van life; factor in how often you can refill.
- Tank Material: Food-grade polyethylene or stainless steel; avoid any tank not rated for potable water.
- Pump Pressure: 45 PSI is comfortable for most sinks; add an accumulator tank to reduce pump cycling noise.
- Hot Water: A propane or 12V tankless water heater (Bosch, Camplux) adds hot water capability.
- Grey Water: Plan where grey water drains—a grey tank or direct-to-ground where legal.
- Winterization: In freezing climates, insulate lines and tank or use a removable/drainable system.
Final Thoughts
A reliable water system is one of the highest-priority systems in a van build. Start simple with a gravity-fed or WaterPORT setup, then upgrade to a pressurized Shurflo system as your build evolves. Always filter your water, size your tank for your refill opportunities, and don’t forget to plan for grey water management.
