Why You Don't Need a Superyacht for Unlimited Fresh Water
- Jan 22
- 3 min read
Updated: Jan 26

For decades, unlimited freshwater at sea was a luxury reserved for superyachts and blue-water cruisers with massive engine rooms. For the rest of us on 30 to 45-foot vessels, cruising often meant "water anxiety": rationing showers, washing dishes with saltwater, and hauling heavy jerry cans from the dock.
But technology has shifted. The barrier to entry has dropped, and with the arrival of high-efficiency units like the MINI50 Portable Watermaker, you no longer need a massive vessel to enjoy total independence. Here is why the modern portable watermaker for boat setups are changing how we sail.
The "Big System" Problem on Small Boats
On a compact sailboat or powerboat, space is the ultimate currency. Traditional marine watermakers are often marvels of engineering, but they demand significant real estate. They require dedicated lockers, complex plumbing runs, and new thru-hull fittings.

For a weekend cruiser or a mid-sized yacht, a permanent install is often overkill. You might not need freshwater production every single day, so why sacrifice permanent storage space for a machine you only use occasionally? This is where the compact boat watermaker concept bridges the gap.
High Output, Zero Installation
The MINI Series from Pure Ocean Marine was designed specifically to solve the space vs. capacity dilemma. Unlike manual survival pumps—which are exhausting to use and produce very little water—the MINI50 Portable Watermaker is a serious, electrically driven unit capable of producing 50 liters per hour.
That is the same output as many installed systems, but in a package you can carry. The true beauty of a portable watermaker lies in its flexibility:
No Installation Costs: No haul-outs, no drilling holes in the hull, and no expensive plumbing labor.
Flexible Storage: Keep the unit in a locker, under a bunk, or in the lazarette. Bring it out only when you need to top up the tanks.
Portability: If you sell your boat, you take the watermaker with you. It is an asset that stays with the sailor, not the hull.
Engineered for Real Sailors
At Pure Ocean Marine, we build systems based on hands-on experience at sea. We know that on a smaller boat, equipment needs to be robust and quiet. The MINI Series functions as a reverse osmosis watermaker that is tough enough for the marine environment but optimized for efficient power usage, ensuring it doesn't drain your house battery bank excessively.

We also prioritized watermaker maintenance. Complex proprietary parts are a nightmare when you are in a remote anchorage. That is why our systems use widely available components, including standard RO membranes. Whether you are performing a routine freshwater flush or a filter change, the simple design ensures you spend less time fixing and more time sailing.
Freedom from the Dock
Adding a small boat watermaker to your inventory changes your cruising range. You are no longer tethered to marinas for water refills. You can stay at that pristine, remote anchorage for an extra week without worrying about running dry.
The MINI Series acts as the ideal boat watermaker setup for:
Weekend Warriors: Extend your trip without heading back to port.
Racers: keep tank weight low and make water as needed.
Renters/Charterers: Bring your own water security on chartered vessels.
Conclusion
You don't need an engine room to have a reliable water supply. With the MINI50 Portable Watermaker, you get the reliable output of a yacht system with the convenience of a carry-on case.
Whether you use it as your primary source or as a backup to existing marine watermakers, the MINI Series offers the ultimate luxury: the freedom to sail where you want, for as long as you want.



