This plumbing system bundle provides foundational components for a basic off-grid water setup in a camper van. It's designed for DIY van builders and vanlife enthusiasts establishing their first water system. The included items collectively enable water storage, delivery, and a basic sink setup.
Curated by The Shelf Curator · Updated June 2026
Built for DIY van builders requiring a pressure-stabilized water system for full-time living or extended off-grid stays. Not for temporary weekend setups or basic gravity-fed systems—this shop focuses on pressurized PEX-B infrastructure.
Curator's pick: Pre-Pressurized Accumulator Tank
This is the most critical component for system longevity because it dampens pressure spikes and prevents the 12V pump from cycling rapidly during low-flow tasks, reducing motor wear and noise. It provides a consistent stream that mimics residential plumbing rather than the pulsing flow typical of basic RV setups.
⚠ Worth knowing: PEX-B plumbing requires specific cinch or crimp tools for secure connections; relying solely on push-to-connect fittings throughout a high-vibration vehicle environment increases the long-term risk of slow leaks at joint stress points.
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This plumbing system bundle is built from fundamental components essential for a basic off-grid water setup in a camper van. It's designed to give you the core items needed to store, pump, and use water in your DIY van conversion.
This system is ideal for DIY van builders and vanlife enthusiasts who are establishing their first water system and prioritize functionality over complex features. It's perfect for those seeking a reliable and straightforward water solution for a sink.
To get started, focus on the core components for water delivery. A full build, including a sink and all accessories, provides a complete and functional system, with costs ranging from $363 to $585.
Full build
$363–$585
Starter
$178–$290
Tank, pump, and basic tubing
Best forDIY Van BuildsBasic Water SystemsOff-Grid LivingFirst-Time VanlifersSimple Kitchen Setups
This 12V water delivery pump provides a 3.0 GPM flow rate, suitable for basic van water systems. It ensures consistent water pressure for sinks and showers in off-grid applications. This pump solves the need for reliable water distribution from a tank to fixtures.
12V DC operation
3.0 Gallons Per Minute (GPM)
Self-priming capability
Built-in pressure switch
RV and marine grade
In this shop: The 12V Water Delivery Pump 3.0 GPM is a core component that aligns with the 'Camper Van Water System Plumbing Components' vibe by providing the necessary water pressure for an off-grid setup.
The Pre-Pressurized Accumulator Tank helps stabilize water pressure and reduce pump cycling in small plumbing systems. It extends the life of your water pump by absorbing pressure fluctuations. This product solves the problem of inconsistent water flow and frequent pump activation.
0.75-1.0 liter capacity
Pre-pressurized for smooth flow
Reduces pump cycling
Enhances system efficiency
Compact design
In this shop: The Pre-Pressurized Accumulator Tank fits the 'Camper Van Water System Plumbing Components' vibe by enhancing the efficiency and longevity of the water delivery system.
This 20-gallon fresh water tank provides a practical volume for potable water storage in a camper van. It offers a balance between water autonomy and space constraints in a typical van build. This tank solves the fundamental need for storing a usable amount of fresh water.
20-gallon capacity
Food-grade polyethylene
NPT inlet/outlet ports
UV-stabilized material
Common van size
In this shop: The Fresh Water Tank 20 Gallon is an essential element for a 'Camper Van Water System Plumbing Components' setup, offering the primary storage solution for potable water.
PEX-B Pipe Tubing, 1/2 Inch, is a flexible and durable option for plumbing lines in a camper van. It's widely used for its resistance to freezing and ease of installation compared to rigid piping. This tubing solves the need for a robust and long-lasting connection material throughout the water system.
1/2 inch nominal size
PEX-B material standard
Flexible and kink-resistant
Freeze and burst resistant
NSF/ANSI 61 certified
In this shop: PEX-B Pipe Tubing 1/2 Inch aligns with the 'Camper Van Water System Plumbing Components' vibe by providing the standard, reliable medium for water transport within the system.
The Push-to-Connect Straight Coupling, 1/2 Inch, offers a quick and tool-free method for joining PEX tubing segments. It simplifies installation and allows for easy modifications or repairs in a van's plumbing system. This coupling solves the need for secure, leak-free connections without specialized tools.
1/2 inch push-to-connect
Tool-free installation
Durable brass construction
Leak-proof seal
Reusable fitting
In this shop: The Push-to-Connect Straight Coupling 1/2 Inch complements the 'Camper Van Water System Plumbing Components' vibe by offering a convenient and robust connection method for the tubing.
Braided Vinyl Reinforced Tubing, 1/2 Inch ID, is a flexible hose ideal for connecting tanks to pumps due to its pliability. Its reinforced construction prevents kinking and maintains flow even in tight spaces. This tubing solves the need for flexible connections that can withstand pressure and movement.
1/2 inch inner diameter
Braided vinyl reinforced
Clear, flexible material
Working pressure to 250 PSI
Food-grade PVC
In this shop: Braided Vinyl Reinforced Tubing 1/2 Inch ID fits the 'Camper Van Water System Plumbing Components' vibe by providing the necessary flexibility for connecting dynamic elements like tanks and pumps.
This Stainless Steel Single Bowl Kitchen Sink is a compact and durable fixture suitable for a van's galley. Its depth allows for practical dishwashing while minimizing water splashing. This sink solves the essential need for a functional washing station in a limited space.
Stainless steel construction
Single bowl design
Compact form factor
Deep basin for splashes
Drop-in or undermount
In this shop: The Stainless Steel Single Bowl Kitchen Sink offers a practical fixture that integrates well with the 'Camper Van Water System Plumbing Components' theme by completing a basic water use station.
The Self-Priming Water Pump Strainer protects your water pump from debris and sediment before it enters the pump's mechanism. It is essential for maintaining the pump's efficiency and extending its lifespan. This strainer solves the problem of potential pump damage from unfiltered water.
Clear housing for inspection
Easy to clean mesh filter
Protects pump from debris
Standard pipe fittings
Required for pump warranty
In this shop: The Self-Priming Water Pump Strainer is a vital protective component within the 'Camper Van Water System Plumbing Components', ensuring system reliability and longevity.
The combination of the pump and accumulator tank ensures consistent water pressure and extends the pump's lifespan by reducing frequent cycling.
The use of PEX-B and push-to-connect fittings simplifies installation for DIYers, making plumbing lines easy to assemble and modify.
This system provides all necessary components for collecting, distributing, and utilizing fresh water with a functional sink in a compact van space.
What to know
The bundled system only provides basic cold water functionality and does not include a water heater or grey water management components.
While suitable for a sink, the 3.0 GPM pump and 20-gallon tank may be limiting for extended showers or high-demand water usage.
How to use this together
1
Install the Water Tank and Pump
Begin by securely mounting the 20 Gallon Fresh Water Tank in your desired location. Next, mount the 12V Water Delivery Pump 3.0 GPM near the tank. Connect the tank to the pump's inlet using the Braided Vinyl Reinforced Tubing, ensuring a Self-Priming Water Pump Strainer is installed between them to protect the pump from debris.
2
Connect the Accumulator and Main Lines
Attach the Pre-Pressurized Accumulator Tank to the outlet side of the 12V Water Delivery Pump to stabilize water pressure. From the accumulator, run your main water line using PEX-B Pipe Tubing 1/2 Inch. Use Push-to-Connect Straight Couplings to join any sections of PEX-B tubing as needed, ensuring all connections are tight and leak-free.
3
Install the Sink and Final Connections
Finally, install the Stainless Steel Single Bowl Kitchen Sink in your galley area. Route a branch of your PEX-B main line to the sink's faucet (faucet not included). Ensure all PEX-B connections are secure, and check the entire system for leaks before filling the tank and operating the pump. This order ensures a protected pump and stable water delivery before the final fixture.
