DIY Campervan Plumbing: A Step-by-Step Guide to Installing Your Water System

Building your own campervan is an exciting journey, and setting up a reliable plumbing system is a crucial part of making your van life comfortable and convenient. In this guide, we’ll take you through the essentials of installing a water system in your campervan. Whether you’re planning short weekend trips or full-time van life, these tips will help you create a functional and efficient setup.

Why a Proper Plumbing System Matters

A well-designed plumbing system is vital for cooking, cleaning, and personal hygiene. Installing a water system in your campervan might seem daunting, but with the right guidance, you can achieve a setup that fits your needs and budget.

Step 1: Plan Your Water System

Determine Your Water Needs

  • Freshwater: Drinking, cooking, and cleaning.
  • Gray Water Storage: Collecting wastewater from sinks and showers.
  • Hot Water: Do you need a water heater?

Create a Layout

Decide where to place the water tanks, pipes, and fixtures. Ideally, keep everything close to minimize the length of pipes and improve water pressure.

List of Tools and Materials

  • Freshwater and gray water tanks.
  • Water pump and accumulator tank.
  • PVC or flexible pipes.
  • Hose clamps and fittings.
  • Sink, faucet, and optional shower fixtures.
  • Water filtration system.

Step 2: Install Water Tanks

Choosing the Right Tanks

  • Freshwater Tank: Look for BPA-free, food-grade tanks. Sizes range from 10 to 40 gallons.
  • Gray Water Tank: Choose a tank with a drain valve for easy emptying.

Placement Tips

  • Install the freshwater tank inside the van to prevent freezing in cold climates.
  • Place the gray water tank underneath the van if space is limited.

Step 3: Set Up the Water Pump and Plumbing

Installing the Water Pump

A 12V water pump ensures consistent water pressure. Pair it with an accumulator tank to reduce pump cycling.

  • Mount the pump near the freshwater tank.
  • Connect the pump inlet to the tank and the outlet to your plumbing system.

Running Pipes

  • Use flexible, food-grade pipes for easy installation.
  • Secure pipes with clamps to prevent leaks.
  • Use T-fittings to split water flow between the sink, shower, or other fixtures.

Step 4: Add Filtration and Heating (Optional)

Water Filtration

A good filtration system ensures safe drinking water. Inline filters are easy to install between the pump and faucet.

Hot Water System

For hot water, consider:

  • Tankless Water Heaters: Compact and energy-efficient.
  • 12V Water Heaters: Powered by your electrical system.

Step 5: Install Fixtures

Sink and Faucet

  • Choose a compact, durable sink and faucet suitable for small spaces.
  • Securely mount the sink and connect the faucet to the water pipes.

Optional Shower Setup

  • Install a small shower tray with a drain leading to the gray water tank.
  • Connect the showerhead to the plumbing system.

Step 6: Test Your System

Before sealing everything in place:

  • Check all connections for leaks.
  • Test water flow from all fixtures.
  • Ensure the pump runs smoothly and shuts off correctly when not in use.

Maintenance Tips

  • Winterize Your System: Drain the tanks and pipes in freezing temperatures to prevent damage.
  • Regular Cleaning: Sanitize the freshwater tank and pipes periodically to avoid bacteria growth.
  • Inspect for Leaks: Regularly check fittings and pipes for signs of wear or damage.

Recommended Products

To make your DIY campervan plumbing project easier, we recommend the following products:

(Use the affiliate links above to purchase these items and support our site at no additional cost to you.)

Conclusion

Installing a plumbing system in your campervan doesn’t have to be overwhelming. With proper planning and the right tools, you can create a system that meets your needs and enhances your van life experience. Start your build today, and enjoy the convenience of running water wherever your adventures take you!

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