Four systems, one job: reliable water offshore.
Every Open Ocean system is built from non-proprietary parts with hands-on controls, whatever powers your boat. Pick the drive type that matches your setup below, or talk to Pete if you're not sure.
Every Open Ocean system is built from non-proprietary parts with hands-on controls, whatever powers your boat. Pick the drive type that matches your setup below, or talk to Pete if you're not sure.
Engine-driven and AC systems scale from one membrane to three - 80, 160 or 240 litres per hour - by adding capacity, not complexity.

Runs off your main engine or generator via electric clutch. Converts motoring time directly into fresh water without drawing heavily on your batteries.

For boats with a 4.5kW+ generator. The simplest install of the range, run at ideal recovery ratios for long membrane life.

Solar and wind ready for boats with 1000W+ arrays. Runs off battery, alternator or generator with a weatherproof brushless controller.

The same reliable core system, adapted for baches and remote properties without mains water. Dual high-pressure pump options available.
An electronic panel operates from the main cabin. You flip the switches yourself, so there are no surprise cycles or error codes - just two hoses running to wherever you want the panel.
The same core process across every drive type - only how the pump is powered changes. Read the full overview →
Seawater is pumped at high pressure across a semi-permeable membrane.
The membrane passes pure water through and blocks salts and solids.
Contaminants wash away as brine, leaving fresh water comparable to rainwater.
Manual flush is standard on every system. Automatic flush is available for unattended vessels.
Every component is chosen to be serviceable anywhere in the world, not just from us. More about our components →
Engineered and machined in New Zealand. Custom carbon fibre tubes with high-density thermoformed end caps, fully corrosion-resistant.
Industry-standard for watermakers. 316 stainless steel body and ceramic pistons, engineered specifically for saltwater longevity.
Threaded fittings and hose tails, deliberately not push-fit, so replacements are available anywhere in the world.
Engine-driven and AC systems. The 12/24V DC High-Output system makes 70 L/h.
Every system comes with a full installation and operation manual. Electric models are the simplest to install. Engine-driven models need a bracket to mount the pump on the engine. Most installs can be done by a handy owner or any competent yacht service, but electrical connections should always be made by a qualified electrician.
Membrane expansion, Autoflush, brackets, spares and panel hardware.
See options → CustomHigh-volume, dual-pump and commercial systems.
See custom systems → IdeasOver 30 real installs from owners and yards.
See photos → DownloadsQuick start guides, manuals and data sheets for every system.
Go to support →
Membranes, pre-filters, storage chemicals and panel hardware for Open Ocean systems.