For cruisers and voyaging sailors, the dream of "going further" shouldn't be cut short by the realities of a full holding tank or a malfunctioning head. Historically, sailboat hulls haven't offered the same underdeck space for massive sanitation systems as their powerboat cousins.
Dometic is changing that narrative with the W-Series VacuMAX Wall Tank, a system designed specifically to fit the vertical, limited wall space of typical sailboat and catamaran hulls. By utilizing existing wall space—typically within the head compartment—sailors can now maximize waste storage without sacrificing precious living or storage area.
Quick Comparison: Dometic W-Series VacuMAX Models
Feature | W-Series Basic | W-Series Standard | VacuMAX Integrated |
|---|---|---|---|
Capacity | 60L | 60L | 50L |
Primary Benefit | Max Capacity | Max Capacity | Odor & Blockage Prevention |
Construction | 3-piece Injection-Molded ABS | 3-piece Injection-Molded ABS | 3-piece Injection-Molded ABS |
Sustainability | Fully Recyclable | Fully Recyclable | Fully Recyclable |
Why Upgrade to a Wall-Mounted Sanitation System?
In the past, sailboat owners often had to choose between small, impractical tanks or bulky installations that ate into cabin space. The W-Series solves this through purpose-built engineering.
1. Maximizing Space in Narrow Hulls
Unlike traditional rotomolded tanks, the W-Series uses a vertical design to slide into the vessel’s existing wall cavities. This allows for up to 60L of capacity in a footprint that previously held much less.
2. Built for the Motion of the Ocean
The W-Series isn't just a plastic box. Its internal ribbing is strategically designed to help waste break down naturally through the movement of the boat, ensuring smoother pump-outs and fewer clogs.
3. Sustainability and Strength
Constructed from three-piece, injection-molded ABS plastic, these tanks are both lighter and stronger than conventional designs. Even better for the eco-conscious sailor, they use 50% less plastic during manufacturing and are fully recyclable.
Advanced Technology for Modern Sailing
Today’s sailboats are floating hubs of technology, from chartplotters to climate control, all fighting for a share of the battery bank. The VacuMAX system is engineered to be a "silent partner" in your power management.
Efficient Power & Water Use: The system consumes 50% less power and up to 75% less water per flush compared to older models.
Rapid Recovery: The system recharges twice as fast as previous VacuFlush generations, ensuring it’s ready when you are.
Odor and Maintenance Control: The VacuMAX Integrated version keeps sanitation hoses empty most of the time. This drastically reduces odor permeation throughout the vessel and extends the life of your hoses.
Pro Tip: Because these systems are wall-mounted within the head compartment, they offer much easier access for routine maintenance or service while you're still on the water.
Complete Your On-Water Experience
A reliable sanitation system is the foundation of a great voyage, but why stop there? To truly master your sailboat's performance, consider integrating your W-Series system with other Dometic marine essentials:
Optimus EPS: For effortless digital steering control on larger catamarans.
Dometic Climate Solutions: Keep the cabin as fresh as the sea breeze.
Mobile Cooling: Ensure your provisions stay fresh as long as your VacuMAX keeps you out at sea.
Ready to reclaim your space and sail further? Explore the Dometic W-Series VacuMAX Collection Today.




