Build a clean, reliable, pressurised campervan water system from day one.
This Essentials Plumbing Kit is designed as the foundation of a properly engineered van conversion water system - providing stable pressure, reduced pump cycling, and a clean, expandable layout.
It’s the base plumbing configuration we use in our own van builds before expanding into shower circuits or hot water systems.
If you want a straightforward campervan plumbing setup that works properly from the start - this is it.
🔧 Why We Use This Essentials Kit
This layout represents the core of a well-built pressurised freshwater system.
It delivers:
• Stable, reliable water pressure
• Reduced pump cycling and smoother tap flow
• Proper inline filtration
• Secure, vibration-resistant pipework
• Expansion capability for future shower or heater upgrades
Many DIY van plumbing systems become complicated too quickly.
This kit focuses on doing the fundamentals correctly - so you build once, not twice.
✅ Suitable For
• DIY campervan and motorhome conversions
• 12V pressurised freshwater systems
• Sink and tap installations
• Off-grid van plumbing setups
• Builders planning future shower or water heater upgrades
❌ Not Suitable For
• Full multi-outlet bathroom systems
• High-flow dual shower setups
• Large vans requiring extended pipe runs
• Complex multi-zone plumbing layouts
🚐 Real-World Use
This kit forms the foundation of our own van conversion plumbing systems.
It includes the essential components required to create a stable, pressurised campervan water system:
Pump, filter, accumulator, isolation valves, and properly secured 12mm push-fit pipework - allowing you to build confidently now and expand later.
📦 What’s Included
1× Seaflo 12V Water Pump
1× Inline Water Filter
1× Accumulator Tank
10m John Guest 12mm Cold Water Pipe
4m John Guest 12mm Hot Water Pipe
5× John Guest 12mm Isolation Valves
5× 12mm Push-Fit × ½″ BSP Female Adapters
2× 12mm Push-Fit × ⅜″ BSP Male Adapters
1× John Guest Equal Tee Connector
6× John Guest Elbow Connectors
34× 12mm Pipe Inserts
33× Locking Clips
5× 12mm Pipe Clamps
🔧 Key Features
• Genuine John Guest food-grade 12mm push-fit plumbing system
• Reliable Seaflo 12V diaphragm water pump
• Accumulator tank for smoother flow and reduced pump noise
• Locking clips for secure, vibration-resistant connections
• Clean, expandable campervan plumbing layout
• Ideal starting point for first-time van conversions
Ready to Build Your Van’s Water System Properly?
Avoid overcomplicated plumbing setups and unstable pump-only systems.
Install a solid, expandable campervan water system foundation that will perform reliably for years.
Order today for fast EU shipping (1–3 working days).
Not sure if this kit fits your build? Contact us before purchasing - we’re happy to help.
📦 Delivery & Support
Prepared and shipped from our EU stock.
Estimated delivery: 1–3 working days.
⚠️ Important Notes
• Designed for 12mm John Guest push-fit plumbing systems
• Fresh water tank, taps, heater, and fixtures not included
• Suitable for 12V pressurised water pump systems
• Correct pipe routing and secure mounting will improve reliability and reduce noise
Warranty: Covered by a 2-year legal warranty under EU consumer law.
Disclaimer: This product must be installed in accordance with applicable plumbing regulations. Professional installation is recommended. Vanlife Crafters is not liable for damage or injury caused by incorrect installation or misuse. Images may not fully represent the final product.
Essential Campervan Water System Kit –12V Pump & 12mm Plumbing
Shipping:
We offer fast and reliable shipping through DPD, Omniva, and Smartpost to several European countries. Orders are processed within 1–2 business days and include tracking.
Returns:
We accept returns within 14 days of receiving your order, provided the item is unused and in its original condition. Return shipping is at the customer’s expense, unless the item is damaged or incorrect.
Exchanges:
If your item is damaged or defective, please contact us immediately upon receipt of your order, and we will assist with an exchange or replacement.
For full details, please see our Shipping & Returns Policy.
















