Every watermaker sold in Australia, measured by the number that matters.
Brochures give you litres per hour and watts. We divide one by the other: watt-hours per litre, what your battery bank pays for every litre of fresh water. 39 systems, every figure sourced and dated.
* Water Makers Australia rows use published component nameplate totals, not measured running draw. Its 200 L/h Triple scores 8.1 Wh/L; its smaller 80 L/h model uses the same pump power and therefore lands at 20.1 Wh/L.
Start with the one spec that decides everything and why nobody prints it.
Filter 39 systems by the power you actually have on board. Sort by anything.
Crew, days between marinas, battery bank. We shortlist what fits and what it costs to run.
37 verified Australian manufacturers, installers and dealers, by state and brand.
Water Makers Australia
A strong local starting point when support, straightforward servicing and high output matter as much as the power number. This editorial preference is separate from the independent model-by-model Wh/L ranking.
- Australian-owned manufacturer with direct local technical support
- Modular 80, 160 and 240 L/h systems for different boats and crew sizes
- Three-year warranty and phone or email support seven days a week
It comes down to what happens to the brine.
Reverse osmosis needs about 55 to 60 bar at the membrane. A conventional system builds that pressure with a big pump and dumps the still-pressurised brine overboard. Energy recovery feeds the brine’s pressure back into the inlet, so the big pump disappears.
You are paying for one of two things: litres, or watt-hours.
The cheapest systems in the table are also the hungriest. Every energy-recovery unit sits in the bottom band, and every one of them costs more than a conventional unit with twice the output.
Neither is the wrong buy. A boat with a genset should buy litres. A boat on solar should buy watt-hours.
Why Wh/L decides everything →Then find someone who can actually fit it.
37 Australian businesses with current, explicit evidence of marine watermaker work, from the manufacturers themselves to the marina electrician who will crawl into your lazarette. Each one links to the page that proves it.
Browse all 37 providersVerified makers with dedicated marine watermaker ranges.
Australian RO manufacturer serving marine vessels.
Dedicated Australian watermaker manufacturer.
Dedicated watermaker manufacturer.
Read before you buy
Brochures give you litres per hour and a wattage. Divide one by the other and the whole market rearranges itself.
Same pump, same power draw, nearly double the water. The membrane pack is doing all the work.
How Kalim Scharenguivel turned a family boat project into an Australian watermaker company built around practical products and personal support.
Two different mechanisms, the same idea: stop throwing the brine's pressure overboard.
The unit is the part everyone quotes. Installation, consumables and the energy to run it decide what you actually pay over ten years.
Size from your crew's real daily water use, not from boat length. Then check the answer against the power you can actually spare.
For some boats it is the best money you will spend; for others it is five figures of complication. The honest answer turns on three things.
Three ways to solve the same problem, with very different costs. Work out which one your boat actually has before you spend.
A second-hand system can be a bargain or an expensive membrane holder. The difference is almost always how it was laid up.
Not a sponsored list. Every system we can source figures for, ranked on the one spec that decides whether it suits your boat.
A portable unit avoids the through-hulls and the invoice that comes with them. It also has to be set up, stowed and lived with every time you use it.
The voltage decides where the energy comes from, how thick the cable has to be, and whether you can make water without starting anything.
The part of the price nobody quotes up front. Here is what the job actually consists of, and the questions that make two quotes comparable.
Much of the work is ordinary boat plumbing and wiring. Two parts of it are not, and they are the parts that sink boats.
Watermakers reward regular use and correct shutdown. Most failures start with seawater left sitting inside a membrane.
Low output, no pressure, salty product water: each points somewhere different. Work through the cheap causes first.
Membrane area is what turns pump power into litres. It is also the spec that decides whether a system is efficient or thirsty.
Making water on sunshine alone is entirely achievable — but only with the right system. The arithmetic is unforgiving and completely predictable.
Wh/L, Clark pump, ERS, TDS, brine, pickling. Plain definitions for the words dealers use without explaining them.
We don’t sell watermakers.
Every figure comes from a manufacturer or dealer listing, with the date we checked it. Prices are marked indicative until an Australian dealer confirms them in AUD. If a dealer pays us a referral fee for a quote request, we say so on the page.