Since 2001, we’ve been building reliable watermakers in New Zealand, now proudly operating from Tauranga. Designed by cruising sailors for cruising sailors, our systems use high-quality, off-the-shelf components, ensuring you can find parts and support anywhere in the world.
The Quencher System
​The Quencher bridges the gap between complex automation and manual reliability. We’ve moved the controls out of the bilge and into your cabin, giving you a professional interface without the "mystery cycles" of fully automated systems.
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  • Remote Control: A compact electric panel allows you to operate the system from a convenient location in your cabin.
 
  • Total Transparency: Hands-on controls mean you always know exactly what your system is doing.
News: A New Chapter for Open Ocean 

​After 20 wonderful years, Terry and Ariel are retiring. We are excited to carry on their legacy of excellent service and reliable products under new ownership. Thank you for your continued support!

We are a fresh team backed by Pete Gillham, a marine engineer with over 20 years of specialised experience in watermakers, vessel systems, and all things marine, and Evan Walker, an experienced business owner.
Choose Your System

We offer four drive options paired with Electric control panels:
Drive Type Best For... Output (L/h)
Engine Drive Maximum efficiency; uses mechanical energy from your engine. 80 – 240
AC (120V/230V) Boats with generators (3.5kW+) or large inverters. 80 – 240
DC (12/24 Volt) Versatile; ideal for solar, wind, or battery power. 35 – 44
DC High Output Vessels with large solar arrays (1000W+) or large alternators. ~70
Featured Upgrade: High-Output Membrane

Our carbon-fibre, short-format membrane pressure vessel is a game-changer for high-flow systems (Engine, AC, Hydraulic).
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  • Performance: Produces 40% more water than regular membranes (up to 115 L/h).
 
  • Compact: Only 110mm x 700mm, allowing for easy installation in tight spaces.
 
  • Light & Strong: Built to last in the harshest marine environments.
Need Advice?

Not sure which system fits your engine space or power bank? We are here to help with parts, advice, and new installations.
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What our customers say

"The watermaker has been working flawlessly, and we are very pleased with the water production."

"Firstly, thanks very much for all your help in getting my watermaker installed, and for persuading me into the engine drive model. I am stunned at the way it pours out..."

"Not only was the price reasonable, but the performance has exceeded our expectations... we are attaining water production in excess of the manufacturer's figures in ocean sailing conditions."

"It has been a good experience with the watermaker. She performed as expected. It is very nice to make that much water in such a short time."

"Thank you very much, Terry. You have gone 'beyond the call of duty'... I have spoken to boating friends about my good experience with Open Ocean (in marked contrast to an alternate brand)."

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