680956 3aa0ee9afb4719c38d4d1294d753a4de x 8154859 a8e6e1f783327688eac14922843e42d41 - BlueGold Watermakers | Marine Watermakers, DIY Parts & Upgrades

Build, Repair, Upgrade
or Buy Your Marine Watermaker

Professional components, kits and complete systems for sailors, cruisers and marine technicians.

Find the right components for your project

Whether you are building from scratch, repairing an existing system, upgrading automation or choosing a ready-made unit, start here.

Start with pumps, membranes, pressure vessels, fittings and control options.
Start building ↗

Find filters, valves, hoses, sensors, membranes and compatible RO components.
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Add automation, digital monitoring, flushing systems or high-efficiency components.
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Choose a complete BlueGold watermaker, tested and ready to install.
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Learn Before You Build Your Watermaker

Before choosing pumps, membranes, pressure vessels or automation, it helps to understand how a marine watermaker really works.

Our Watermaker Knowledge Base explains seawater reverse osmosis, energy recovery, membrane vessels, high-pressure pumps, freshwater flushing, TDS monitoring, installation, commissioning, maintenance and troubleshooting in practical language for boat owners and technicians.

Explore the Watermaker Knowledge Base ↗

MORE WATER, LESS POWER

New high-flow 3″ vessels. Up to 30% less power.

BlueGold’s new 3″ × 21″ pressure vessels are designed for compact, efficient marine RO systems. With larger ¾″ feed and brine ports, advanced Delrin heads and saltwater-compatible O-rings, they support better flow behaviour and easier onboard installation than many traditional long-format vessel arrangements.

In suitable systems, the 3021 membrane format can replace traditional 2540 layouts with comparable membrane area, shorter installation length and improved hydraulic design.

Discover why the Mk II “JUST WATER” is a game changer!

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Our Products

Our product range is organized around the way you work on your watermaker: build, repair, upgrade or choose a complete ready-to-install system. Find professional marine RO components, spare parts, control solutions and BlueGold watermakers in one place, with practical categories designed for real onboard installation needs.

Energy Recovery
COMPONENTS
CONTROLLERS
CONSUMABLES

Ready-Made BlueGold Watermakers

For customers who prefer a complete solution, BlueGold offers ready-made marine watermakers built around proven components, practical layouts and real onboard installation needs. Choose a tested system designed for reliable freshwater production without starting from individual parts.

JUST WATER MK2
140 – 250 L/H

PULSAR (Energy Recovery)
120 L/H – 12 Volt – 400 Watt

AQUABOOST (Energy Recovery)
30-75 L/H- 12V- 120 to 400 Watt

Beyond the Watermaker:
The B.O.S. Project

B.O.S. (Boat Operating System) is CobrAm’s onboard systems project: a modular platform designed to connect navigation, watermakers, energy systems, sensors, alarms and remote monitoring into one practical and open source marine environment. It is our long-term vision for smarter boats, easier diagnostics and better control of critical onboard equipment.

Find out more

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