
Medium Systems
110 L/h Low Power Water Maker
The 110 L/h Low Power Water Maker gives families and small crews water independence when showers, cooking and washing put more demand on the tank. Two membranes produce a nominal 110 litres an hour using the same 1.1 kW high-pressure motor as the smaller Low Power model.
It suits a quality 2 kVA inverter or small portable generator, with the feed pump running from the boat's 12 V supply. The manually operated control panel keeps pressure, flow and water quality in view, giving you straightforward control over your water production.
For $9,200 inc GST, you get the complete watermaker kit, a three-year warranty and support seven days a week. Full inclusions and installation requirements are listed below. Designed and built in Sydney, Australia.
Not sure which system fits your vessel? Answer a few questions, read how it works or call +61 2 8317 1755.
- Nominal output
- 110 L/h
- Membranes
- 2
- Feed Pump
- 12V DC
- Warranty
- 3 years
- Aussie support
- 7 days
Key figures
At a glance
The figures most owners want before anything else. Full detail is in the technical specifications.
| Nominal output | 110 L/h at 35,000 ppm seawater and 25°C |
|---|---|
| Maximum product flow | 120 L/h |
| Product water TDS | 100–400 ppm |
| Membranes | 2 × DuPont FilmTec SW30-2540 |
| High-pressure pump | 8 L/min 316 stainless triplex head; 1.1 kW 240 V 50 Hz motor |
| Feed pump | ZKSJ 12 V DC, 110 W |
| Power source | Quality 2 kVA inverter or Honda EU22i class generator. |
| Daily use example | 165–220 L in about 1.5–2 hours at nominal output |
| Installed weight | About 56 kg |
| Warranty | 3 years. Full warranty terms |
The short version
Why boat owners pick this model
Nearly twice the water from the same power.
Two membranes produce a nominal 110 L/h using the same 1.1 kW motor as the 60 L/h model, so a quality 2 kVA inverter or Honda EU22i class generator still runs it.
Keeps up with family life aboard.
A 1.5–2 hour run at nominal output produces about 165–220 litres for showers, cooking and washing.
Feed pump on 12 V.
The feed pump runs straight from the battery bank, so the AC source carries only the high-pressure motor.
Compact, modular installation.
The two-membrane module is 1110 × 90 × 290 mm, and the pumps, pre-filters, enclosure and panel mount separately in lockers, a lazarette or the engine room.
Straightforward manual control.
Gauges, a flow meter and a TDS meter keep pressure, flow and water quality in view from the remote panel.
Service anywhere
with non-proprietary parts and standard-size consumables that are readily available, and spares shipped worldwide.
Designed and built in Sydney.
Three-year warranty, with phone and email support seven days a week.
Getting the size right
Is this the right model for your boat?
Who this suits
| Who | Cruising couples, families and small crews spending extended time aboard, with a suitable inverter or small generator. |
|---|---|
| Typical boat length | Typically around 10–16 m (33–52 ft). |
| Real example installations | Wauquiez Centurion 40s; Seawind 1000. |
Boat length is a guide. Daily water use, available power and installation space determine the best fit. Installation examples may use different equipment configurations.
Consider another model if
You have the AC capacity for a 1.5 kW motor
140 L/h High Output Water Maker
140 L/h nominal output from two membranes, with a choice of feed pumps.
- Explained plainly How a marine watermaker works Seawater in, fresh water out. A plain walk through reverse osmosis, what runs the system, what looking after it involves, and why it is worth it. Read how it works →
- Still deciding? Help me choose a system A few questions about how you use water now, how much you need and the power you have on board, and you will know which system fits your vessel. Answer a few questions →
- Reading the specs Why watermakers should be rated at 50 Hz Australia runs on 50 Hz power. Why a pump package rated on 60 Hz power turns slower here and can make less water, and the question to ask of any output figure. Read about 50 Hz ratings →
- Once it is on board What your watermaker is actually telling you Less water than it used to make is more often cold water, a dirty filter or a blocked strainer than a failed membrane. The readings to take, and how to read them together. Read the diagnostics guide →
Sizing it up
How long to make a day's water
As a rule of thumb, allow a minimum of around 40 litres of fresh water per person per day. At 110 L/h, this is roughly how long it takes to make.
- 2 people · 80 L about 45 min
- 4 people · 160 L about 1 hr 25 min
- 6 people · 240 L about 2 hr 10 min
- Estimates at nominal output. Real-world output varies with water temperature, feed salinity and membrane age.
Smart Engineering. Standard Parts. Zero Stress.
Specifications, kit and running costs
Technical specifications Nominal output, Operating limit, Membranes
| Nominal output | 110 L/h at 35,000 ppm seawater and 25°C. Output varies with seawater temperature, salinity and membrane condition. |
|---|---|
| Operating limit | Maximum product flow 120 L/h; maximum normal system pressure 800 psi (55 bar). Stop increasing pressure when either limit is reached. |
| Membranes | 2 × DuPont FilmTec SW30-2540 seawater reverse osmosis membranes (2.5″ × 40″), arranged in series in separate housings. |
| Recovery and brine flow | At nominal output and 8 L/min feed: 22.9% overall recovery, 110 L/h product water and about 370 L/h (6.2 L/min) brine. |
| Product water quality | Product TDS: 100–400 ppm. TDS varies with seawater conditions and membrane condition; it does not establish microbiological safety. Tank hygiene and any post-tank treatment remain the owner's responsibility. |
| Product water diversion | Product water stays on test until TDS is stable and below 500 ppm, then the operator diverts it to tank. |
| Feed water limits | Maximum feed temperature 45°C; no chlorinated feed water. Maximum SDI 5; continuous pH 2 to 11. Use clean, well-exchanged seawater, free from fuel, sewage, algal blooms and excessive sediment. The carbon filter removes chlorine from the fresh water flush supply. |
| High-pressure pump head | Botuo LB0810-C flanged triplex plunger head: 316 stainless manifold, ceramic plungers, 8 L/min rated at 1450 rpm, 100 bar maximum, operated at up to 55 bar (800 psi) |
| High-pressure pump motor | Techtop TML 1.1 kW, 4-pole, 240 V 50 Hz single-phase, capacitor start / capacitor run, TEFC IP55, integral manual-reset thermal overload, 15.6 kg as supplied |
| Motor full-load and starting current | 6.5 A full load; starting-current ratio 5.9×. |
| Feed pump | ZKSJ DC55JE-12240S brushless 12 V DC twin-impeller magnetic-drive centrifugal pump: 110 W / 9.2 A open pumping, 30 L/min max, IP68 pump body (driver dry-mounted), electronic dry-run, jam and overload protection, 1.25 kg |
| Pressure relief valve | PA VS100 316 stainless pressure relief valve helps protect the high-pressure system against overpressure for safe operation. |
| Pressure control | Manual 316 stainless steel needle valve on the remote panel; membrane pressure read on a dual-scale gauge. |
| Pump control enclosure | IP65 enclosure, Australian-built by EIA Services: Schneider 16 A C-curve circuit breaker for the high-pressure pump, Schneider 16 A DC breaker and 40 A relay for the feed pump, Finder 25 A contactor with 12 V coil, fused 12 V DC control circuit (2 A) to the remote panel switches. |
| Motor protection | Integral manual-reset thermal overload on the high-pressure motor; electronic dry-run, jam and overload protection in the feed pump's driver. Both are built into the units themselves, independent of the enclosure. |
| Control | 316 stainless steel remote panel with feed and high-pressure pump switches, feed-pressure and membrane-pressure gauges (psi/bar), TDS meter, flow meter, test/tank diverter and manual needle valve. The pump switches use a fused 12 V DC control circuit. The flush timer and TDS meter have their own batteries. |
| Pre-filtration and flush | 20 µm and 5 µm pleated polypropylene 10″ sediment cartridges (standard size, washable); fresh water flush assembly: activated carbon block filter and inline auto timer |
| Electrical requirements | Dedicated 240 V AC 50 Hz supply for the 1.1 kW high-pressure motor, plus a protected 12 V DC supply for the feed pump and controls. |
| Inverter or generator sizing | WMA sizing guide: a quality 2 kVA inverter or Honda EU22i-class generator. The feed pump runs directly from the 12 V supply. Suitability depends on motor-starting capability, continuous output, battery supply and other simultaneous loads; have the selected source assessed for the installation. |
| Battery supply | The battery bank supplies the high-pressure pump through the inverter, plus the 12 V feed pump and control circuit. Battery demand depends on operating pressure, battery voltage and inverter efficiency. Motor kW is rated shaft output, not total electrical consumption. Size the battery bank for the intended daily runtime, usable capacity, other onboard loads and recharging, with adequate discharge capability for motor starting and continuous operation. |
| Noise | 60 dB(A) at 1 m; 52 dB(A) at 3 m. Recorded by Water Makers Australia on the 60 L/h Low Power system at 800 psi. The 110 L/h model uses the same pump and motor assembly. Sound levels on board vary with mounting, location, enclosure and the surrounding structure. |
| Installed system weight | About 56 kg. Final installed weight varies with hose lengths and fittings. |
| Mounting | Separately mounted modules; high-pressure pump on Isoflex anti-vibration feet; feed pump below the waterline with flooded suction; enclosure mounted vertically with cable entries down. |
| Standards and ratings | Pump control enclosure IP65; high-pressure motor IP55; feed pump IP68. Relief valve to EN ISO 4126-1. Electrical installation must comply with applicable marine electrical standards. |
| Designed and built | In Sydney, Australia, by Water Makers Australia. |
| Warranty | Three-year Water Makers Australia voluntary warranty against defects in materials and workmanship in non-consumable parts, from date of shipment, subject to the full warranty terms and in addition to applicable Australian Consumer Law rights. Full terms: Water Makers Australia Warranty v1.0. |
| Membrane module | 1110 × 90 × 290 mm (L × W × H) |
| High-pressure pump and motor on mounting feet | 480 × 250 × 260 mm (L × W × H) |
| 12 V feed pump | 150 × 130 × 70 mm (L × W × H) |
| Pre-filter assembly | 940 × 150 × 400 mm (L × W × H) |
| Pump control enclosure | 165 × 100 × 240 mm (L × W × H) |
| Manual control panel | 250 × 140 × 200 mm (L × W × H) |
Allow additional space for hose connections, bend radius and maintenance. Filter bowls need 40 mm clearance below; the motor needs airflow. Pre-filter housings can be mounted separately.
This kit includes 22 items
Membrane module
- 2 × DuPont FilmTec SW30-2540 seawater membranes
- 2 × high-pressure membrane housings with duplex stainless end caps and saddle mounts
High-pressure pump
- Botuo LB0810-C flanged triplex plunger head (8 L/min) with Techtop TML 1.1 kW single-phase 240 V 50 Hz IP55 motor
- A set of Isoflex anti-vibration mounting feet
Pressure relief valve
- PA VS100 316 stainless pressure relief valve helps protect the high-pressure system against overpressure for safe operation.
Pump control enclosure
- IP65 enclosure, Australian-built by EIA Services
- Schneider circuit breaker for the high-pressure pump
- Finder 25 A contactor
- Feed pump breaker and relay
- Fused 12 V DC control circuit wired to the remote panel switches
Feed pump
- 12 V DC (110 W, 9.2 A) brushless twin-impeller magnetic-drive feed pump, ZKSJ DC55JE-12240S
Pre-filters
- 1 × 20 micron and 1 × 5 micron pleated food-grade polypropylene sediment filters in clear-bowl housings
- 2 × reinforced nylon non-return valves, assembled
Fresh water flush assembly
- 5 micron nominal activated coconut shell carbon block filter and inline auto timer, plumbed as one unit
Manual control panel
- 316 stainless steel remote panel with surround, assembled with pump switches, dual-scale gauges, TDS meter, manual needle valve, test/tank diverter and flow meter
Hoses
- 5 m ¾″ ID food-grade reinforced PVC
- 10 m × ⅜″ OD food-grade LLDPE tubing
- 5 m × ½″ ID food-grade reinforced PVC
- 1.5 m × ⅜″ ID anti-abrasion high-pressure hose with 316 SS JIC connections
- 1 × 30 cm × ⅜″ ID high-pressure jumper hose between the membrane housings
- Custom-length remote panel high-pressure hose
Fittings and extras
- Thread seal tape, filter housing spanner, Lubrifilm Plus silicone O-ring grease (38 g), Tef-Gel (10 g), spare fittings, 316 SS hose clamps, installation and operating manual, phone and email support
What your vessel needs to provide 8 requirements
| Seawater intake | A dedicated seawater thru-hull and accessible seacock, ¾″ / 20 mm minimum. Sharing an engine or generator intake is not recommended. |
|---|---|
| Seawater strainer | A seawater strainer suitable for installation below the waterline, between seacock and feed pump. The VETUS FTR33019M with metal inspection lid and 19 mm hose connections is available as an optional add-on for $350 inc GST. |
| Feed-pump position | A position for the feed pump below the waterline with flooded suction, as close to the intake as practical. |
| Fresh water flush supply | A pressurised fresh water branch to the flush connection. |
| Tank and test connections | A free-flowing, non-pressurised product water connection into the tank (top entry preferred) and a TEST outlet. |
| Discharge outlets | Two separate overboard outlets above the waterline: brine (½″ ID minimum, no valve) and pressure relief discharge (½″ ID minimum, no valve). |
| Electrical installation | Vessel-side 240 V AC isolation, RCD and overcurrent protection, a protected 12 V DC circuit, all field wiring, glands and switchboard work, installed and tested by a licensed marine electrician to AS/NZS 3000 and AS/NZS 3004, or the equivalent standards where the vessel is registered. |
| Mounting and hull work | Mounting surfaces and fasteners able to carry each module's weight, and a competent person for hull penetrations. |
Give this list to your installer before the system arrives. We can put you in touch with one.
What it costs to run Consumables and service
Replacement prices in AUD including GST, plus shipping.
| 20 µm sediment cartridge | $20. Inspect monthly; clean or replace when contaminated or when feed pressure drops. Replace when worn or when cleaning does not restore flow. Annual budget example: five cartridges. |
|---|---|
| 5 µm sediment cartridge | $20. Same inspection and replacement guidance as the 20 µm cartridge. Annual budget example: five cartridges. |
| Activated carbon flush cartridge | $20. Replace every six months, or sooner if reduced flow, contamination or chlorine breakthrough is suspected. |
| FilmTec SW30-2540 membranes | $550 each (2 fitted). Typically 3 to 5 years with correct flushing and preservation; condition-based, not calendar-based. |
| High-pressure pump oil | 15W-40 heavy-duty diesel engine oil meeting API CH-4 or higher. Available from automotive suppliers or chandleries. First change at 50 operating hours, then every 500 hours or annually, whichever comes first. |
| Batteries | Flush timer: 9 V battery; replace when the low-battery indicator appears. TDS meter: replace with the battery type specified on the fitted meter. |
| Membrane preservative for lay-up | Food-grade, alcohol-free propylene glycol (PG), not supplied. Used for preservation when the required seven-day fresh water flushing interval cannot be maintained; preparation and procedure are in the manual. |
| Indicative annual consumables | Budget example: about $260 plus shipping for five pairs of sediment cartridges, two carbon cartridges and an oil change. Actual ongoing consumables cost depends on use and water conditions; excludes membranes, batteries and preservative. |
This is a modular system: the membrane assembly, pumps, pre-filters, pump control enclosure and manual control panel mount separately. Your installer can use space in lockers, a lazarette or an engine room while keeping filters and pumps accessible for servicing. The panel can sit in a convenient position with its gauges, switches and valves within reach.
Component dimensions and service clearances are listed in the technical specifications. The supplied manual covers installation, operation, flushing and preservation between periods of use.
After the sale
Support, ordering and delivery
Water Makers Australia provides phone and email support seven days a week, with installation and operating documentation supplied with every system.
Non-proprietary parts
Non-proprietary parts give you freedom around service and replacement suppliers.
Standard consumables
Standard sizes and specifications make sediment filters, carbon cartridges and membranes readily available.
Spares wherever you go
We supply spares worldwide, with fast DHL shipping to most parts of the globe.
Ordering and delivery
Each system is built to order in Sydney, with full payment at the time of order. Usual lead time is one to two weeks. Call +61 2 8317 1755 for current build and delivery timing. Delivery is by TNT within Australia and DHL to supported international destinations. Spare consumables are sold separately.
Tell us your daily water use, available power and installation space, and we'll help you choose a suitable configuration.
What happens next
Every system comes with an installation and operation manual. We can send another copy.
What owners say
Trusted by Australians On Land and At Sea
4.9 Google ReviewsCan I run this watermaker from my inverter or generator?
Yes, with a suitable source. Use a quality 2 kVA inverter such as a Victron MultiPlus, or a Honda EU22i class generator. The feed pump runs directly from the 12 V supply. Your marine electrician should confirm starting capability, continuous output, battery capacity and other simultaneous loads.
How much water can I make during a daily run?
At the nominal 110 L/h output, 1.5–2 hours produces about 165–220 litres. Match your running time to daily use and allow for changes in output with water conditions.
Will it always produce exactly 110 L/h?
No. The nominal rating is for 35,000 ppm seawater at 25°C. Output changes with temperature, salinity and membrane condition. The operating limits are 120 L/h product flow and 800 psi; both apply.
How much room does the second membrane need?
The two-membrane module measures 1110 × 90 × 290 mm before hose connections and service clearance. The pumps, pre-filters, enclosure and control panel mount separately, so they can use other available spaces on board.
What power does a Water Makers Australia system need?
The high-pressure pump runs on AC power, so you'll need a generator or an inverter setup to run it. Most cruising boats set up for longer trips already have this. The feed pump, which draws water in before it's pressurised, comes in either a 12V DC or 240V AC option, so it fits neatly around your existing setup. If you're not sure what you've got, that's exactly the kind of thing we'll help you work out before you buy. Just tell us about your boat and we'll confirm which setup will work properly with the power you have available.
How do I know which system size is right for my boat?
Whether you're on a 30-foot sailboat or a 50-foot catamaran, the right size comes down to two things: how many people you're making water for, and how much run time you're happy with. As a rule of thumb, allow a minimum of around 40 litres of fresh water per person per day, and plan for more if you want the comfort of long showers and a good buffer. As a simple guide, a single-membrane watermaker suits a couple, a double-membrane system suits around four people, and a triple-membrane system suits larger crews or anyone who wants plenty of water fast.
Run time is the other half of the story. Fewer people don't always mean a smaller system. If you'd rather run your watermaker for twenty minutes than an hour, stepping up to more membranes gets your day's water made quickly and gets you back to enjoying the boat.
That's the quick version. For the proper answer tailored to your boat, crew and cruising style, use our Help Me Choose tool, which walks you through it in a couple of minutes. Or just get in touch with your boat length, crew size and typical trip length, and we'll tell you straight which marine watermaker is the right fit.
Do I need a professional to install it?
For most owners, yes, and we'd recommend it. We work with a network of experienced installers around the country who fit and service Water Makers Australia systems properly the first time. You can find one near you here. If you're mechanically confident and want to install it yourself, we do supply a full installation and operation manual and you're welcome to take that route, but for most people, having it fitted by someone who does this regularly is the smoother path. Whichever route you take, two parts of the job always go to the right hands: electrical work must be carried out by a licensed electrician, in line with applicable regulations, and hull penetrations, seacocks and below-waterline plumbing should always be completed or checked by a competent marine professional.
Will I be stuck if I need a spare part while I'm far from home?
No. We've deliberately built our systems around industry-standard, non-proprietary components: standard 10-inch filters, DuPont FilmTec membranes, and readily available fittings, so most of what you'd need is standard, widely available gear, not a proprietary part you can only get from one supplier.
Some parts are still easiest to get directly from us, and that's fine too. We sell direct to you rather than through a dealer network, so you're talking to the people who actually build these systems, not a third party. We stock spares ourselves and can ship them out to you, including to remote areas, just get in touch and we'll sort you out.
Good engineering means thinking about what happens when something needs replacing three years and a thousand nautical miles from where you bought it.
How long will delivery take?
Every system is built to order in our Sydney workshop, and we take the time to build it properly, tested and ready to go before it ships. Most systems are dispatched within a couple of weeks, with custom configurations and busy periods sometimes adding a little more, and freight depending on where you are. Get in touch and we'll confirm a timeframe for your system.
What does the 3-year warranty actually cover?
You're covered for a full three years from the date your system ships. If a component ever turns out to be defective in materials or workmanship, we'll repair it, replace it, or supply an equivalent, and our workshop labour to put it right is on us. That's the heart of it: for three years, a genuine fault on our end is our problem to solve, not yours.
As with any warranty, there are a few sensible conditions, mainly that the system's been installed and used in line with the manual, and things like freight and on-boat labour sit outside it. The full details are all laid out plainly on our Warranty page and in your manual.
Not sure which system fits?
Tell us your boat, crew size and daily water need and we will size a system with you.




