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DIY Camper Van Plumbing System Components

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DIY Camper Van Plumbing System Components

#water-storage#pumps#sinks#plumbing-hardware
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This collection provides fundamental components for constructing a basic and functional plumbing system in a camper van. It is designed for DIY enthusiasts and van lifers seeking straightforward, budget-conscious solutions for water storage, delivery, and basic sanitation. These products work together to establish a simple water setup for tasks like washing hands or light dish duty.

Curated by The Field Editor · Updated June 2026

Built for weekend builders and solo travelers who need a functional water system without the complexity of pressurized PEX lines. Not for full-sized RVs or high-pressure shower setups—this shop focuses on simple, gravity-fed and low-voltage diaphragm configurations.

Curator's pick: 12V Self-Priming Water Diaphragm Pump

This pump is specifically designed for small-scale layouts because it can run dry without damage and supports consistent flow for basic sink tasks, outperforming submersible pumps that often fail when grit enters the tank.

⚠ Worth knowing: Flexible PVC tubing tends to stiffen and cloud after several seasonal temperature cycles, which can lead to hairline cracks at the clamp points if the system is bumped or shifted frequently.

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This shop is built from a collection of fundamental components designed for a basic and functional plumbing system in a camper van. It focuses on affordability and ease of installation, making van life more comfortable by providing access to water.

This setup is for DIY enthusiasts and van lifers seeking straightforward, budget-conscious solutions for water storage, delivery, and basic sanitation. It's ideal for those who need a simple water system for tasks like handwashing or light dish duty in a compact space.

To approach your budget, you can start with a 5-Gallon Water Tank and either the 12V Self-Priming Water Diaphragm Pump or the Submersible Water Pump 12V, costing around $40-$65. A full build, including all components for a complete sink and water system, will range from $130-$245.

Full build

$130–$245

Starter

$40–$65

Tank + Basic Pump

Best forDIY Van BuildsBudget-Friendly SolutionsBasic Water NeedsCompact SpacesBeginner Van Lifers

G004 5 Gallon Water Tank

Match 95%

Reliance Products

Water Storage$20-$30

This is a 5-gallon water tank, suitable for basic water storage in small camper van setups. It provides a simple and portable solution for handwashing or collecting fresh water. This tank is intended for users who need a compact and manageable water supply.

  • 5-gallon (19-liter) capacity
  • Rigid HDPE plastic construction
  • Integrated handle for carrying
  • Compact size for small spaces

In this shop: This water tank fits the DIY Camper Van Plumbing System Components vibe by offering a practical and standard water storage option for basic van builds.

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12V Self-Priming Water Diaphragm Pump

Match 98%

SEAFLO

Pumps$25-$45

This 12V self-priming diaphragm pump is designed for transferring water in small-scale applications. It is suitable for camper vans needing consistent water pressure for a faucet or shower. The pump solves the problem of manual water delivery with reliable electric operation.

  • 12V DC operation
  • Self-priming capability
  • Diaphragm pump design
  • Up to 1.5 gallons per minute flow
  • Integrated pressure switch

In this shop: The 12V Self-Priming Water Diaphragm Pump aligns with the DIY Camper Van Plumbing System Components theme as a commonly used and efficient pump for van conversions.

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Stainless Steel Bar Sink

Match 90%

Monarch Abode

Sinks$50-$100

This stainless steel bar sink is a compact option designed for small kitchenettes or wet bar areas. Its size makes it suitable for tight spaces like those found in a camper van. It provides a dedicated basin for washing or food preparation.

  • Stainless steel material
  • Compact bar sink dimensions
  • Drop-in or undermount installation
  • Corrosion-resistant finish

In this shop: The Stainless Steel Bar Sink fits the DIY Camper Van Plumbing System Components vibe by providing a compact and functional sink solution for small van kitchenettes.

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Flexible PVC Tubing 1/2 Inch

Match 95%

Generic

Plumbing Hardware$10-$20

This is 1/2 inch flexible PVC tubing, commonly used for water lines in plumbing systems. It is suitable for connecting tanks to pumps and faucets in camper vans. The tubing solves the problem of rigid pipe limitations, allowing for easier installation in confined and irregular spaces.

  • 1/2 inch inner diameter
  • Flexible PVC material
  • Potable water safe
  • Temperature resistant
  • Easy to cut and fit

In this shop: Flexible PVC Tubing 1/2 Inch aligns with the DIY Camper Van Plumbing System Components theme as a foundational component for connecting water system elements.

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Braided Nylon Hose Clamps

Match 90%

Generic

Plumbing Hardware$5-$15

These braided nylon hose clamps are used to secure flexible tubing connections, preventing leaks in plumbing systems. They are suitable for low-pressure water lines in camper vans. These clamps ensure a tight seal at connection points, minimizing the risk of water damage.

  • Durable braided nylon material
  • Non-corrosive properties
  • Adjustable diameter
  • Lightweight and reusable
  • For 1/2 to 1 inch hoses

In this shop: Braided Nylon Hose Clamps fit the DIY Camper Van Plumbing System Components vibe as an essential item for securing water lines and ensuring a leak-free system.

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Submersible Water Pump 12V

Match 85%

Comet

Pumps$20-$35

This 12V submersible water pump is a simple and cost-effective option for moving water from a tank. It is suitable for very basic camper van setups where a high flow rate or pressure is not critical. The pump offers a straightforward solution for manual-switched water dispensing.

  • 12V DC operation
  • Submersible design
  • Compact form factor
  • Low power consumption
  • Flow up to 1 gallon per minute

In this shop: The Submersible Water Pump 12V is a good choice for the DIY Camper Van Plumbing System Components vibe, offering a budget-friendly pump alternative for simple setups.

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What works

  • This system provides immediate access to running water in your van, significantly improving hygiene and convenience for daily tasks.
  • The components are selected for their ease of installation, making this a manageable project even for those new to DIY van conversions.
  • By combining these products, you achieve a highly functional and reliable water setup without the complexity or high cost of more advanced systems.

What to know

  • The system focuses on basic water needs and may not provide sufficient pressure or volume for extensive showering or high-demand washing.
  • While flexible, the 5-Gallon Water Tank requires manual refilling and is not designed for continuous, high-capacity water usage over long periods.

How to use this together

  1. 1

    Position Your Water Tank

    Begin by placing your G004 5 Gallon Water Tank in its desired location within the van. Consider accessibility for refilling and stability during transit. This is the foundation of your water supply, so ensure it's secure before proceeding to avoid movement and potential leaks.

  2. 2

    Install Your Pump System

    Decide between the 12V Self-Priming Water Diaphragm Pump for pressurized water or the Submersible Water Pump 12V for a simpler gravity-fed or low-pressure system. Connect your chosen pump to the water tank using the Flexible PVC Tubing 1/2 Inch. Ensuring the pump is correctly wired to your 12V power source before connecting tubing prevents electrical issues after plumbing is in place.

  3. 3

    Connect the Sink and Tubing

    Mount the Stainless Steel Bar Sink in its designated area. Use additional Flexible PVC Tubing 1/2 Inch to connect the pump's output to your sink's faucet (if applicable, or directly to a simple spout). Secure all tubing connections with the Braided Nylon Hose Clamps to prevent leaks and ensure a watertight seal, which is critical before operating the system.

  4. 4

    Check for Leaks and Test

    Once all connections are made and secured with hose clamps, fill your 5 Gallon Water Tank. Turn on your 12V pump and check all tubing and clamp points for any signs of leakage. It's essential to test immediately to catch any issues before they become larger problems in your finished build.

Frequently asked questions