Build a quieter, smoother, and more reliable campervan water system from day one.
 
This complete 12V water pump and accumulator bundle is designed specifically for van conversions, motorhomes, and off-grid water systems that require stable, pressurised flow.
 
Featuring the Seaflo Series 33 diaphragm pump and matching accumulator tank, this setup delivers consistent water pressure while reducing pump cycling, vibration, and long-term wear.
 
If you’re building a van conversion water system and want it done properly - this is the correct foundation.
 
💧 Why We Use This Kit
This pump and accumulator combination forms the base of every pressurised freshwater system we install in our own builds.
 
Most DIY setups install only a 12V water pump.
That works - but it often results in:
• Aggressive on/off cycling
• Pulsing tap flow
• Increased pump wear
• Higher operating noise
 
Adding an accumulator tank transforms your campervan plumbing system into a smooth, stable, professionally engineered setup.
It improves comfort, protects components, and makes daily use noticeably better.
 
✅ Suitable For
• 12V campervan water pump systems
• Motorhome fresh water installations
• Off-grid van conversion plumbing builds
• Sink and shower setups
• Upgrading existing pump-only systems
 
❌ Not Suitable For
• Very large systems running multiple showers simultaneously
• High-flow commercial applications
• Systems using non-standard pipe sizes
 
🚐 Real-World Use
This exact configuration is used in our own van conversions as the core pressure system before branching into sinks, showers, and water heater circuits.
It provides stable base pressure so the entire freshwater system operates smoothly and predictably.
 
📦 What’s Included
1× Seaflo 12V Water Pump
1× Inline Water Filter
1× Accumulator Tank
60cm John Guest 12mm Cold Water Pipe
2× John Guest 12mm Isolation Valves
4× 12mm Push-Fit × ½″ BSP Female Adapters
8× 12mm Pipe Inserts
8× Locking Clips
3× 12mm Pipe Clamps
 
🔧 Key Features
• Smooth, stable water pressure
• Reduced pump cycling and extended pump life
• Quieter operation with reduced vibration
• Genuine 12mm John Guest push-fit compatibility
• Secure locking clips for vibration resistance
• Clean, expandable foundation for van plumbing systems
 
Ready to Upgrade Your Van’s Water System?
Stop building basic plumbing setups.
 
Install a proper pressurised campervan water system that feels smooth, quiet, and reliable every time you turn the tap.
 
Order today for fast EU shipping (1–3 working days).
 
Not sure if this bundle fits your setup? Contact us before purchasing - we’re happy to advise.
 
⚠️ Important Notes
• Designed for 12mm John Guest push-fit plumbing systems
• Accumulator must be correctly pre-charged for optimal performance
• Proper mounting and pipe routing significantly reduce system noise
• Fresh water tank and fixtures not included
 
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.