If you have been researching the Rainman portable watermaker price, you already know these units sit at the premium end of the portable watermaker market. The LEDI Scout is the closest Australian-made alternative: same 12V DC operation, same portable carry-anywhere format, same marine-grade RO technology, and a lower price point with no overseas distributor markup. This guide walks through what each system actually delivers and what you are paying for, so you can decide which makes sense for your boat or trip.
What the Rainman Portable Watermaker Costs in Australia
Rainman units are imported from New Zealand and distributed through Australian marine retailers. Retail pricing varies by dealer and configuration, but Rainman systems with comparable output to the LEDI Scout have historically sat above AUD $6,000 to over $7,000 for a ready-to-run package, before you factor in dealer margin, freight from overseas, and the reality that warranty or service support runs through a third party rather than the manufacturer. Prices shift, so always confirm with a current retailer quote. What does not shift is the underlying reason imported systems carry that premium: exchange rates, international freight, distributor margin, and the cost of holding spare parts in a country where they were not made.
What the LEDI Scout Costs and Why
The LEDI Scout comes in 10 LPH and 20 LPH versions, with current pricing for both on the Scout page. It is designed, assembled and tested on the Gold Coast. There is no importer, no distributor, and no overseas freight cost baked into that price. You buy direct from the people who built it.
The parts inside are not budget compromises. The Scout runs a Pumptec 107SS stainless-steel high-pressure pump from the USA, rated to around 800 PSI. It uses a marine-grade RO membrane with 99.4% salt rejection, handles seawater up to 35,000 ppm, and outputs typically 250 to 300 ppm TDS, well under the 800 ppm threshold that meets Australian drinking-water standards. A built-in UV steriliser is standard. These are the same commercial-grade components used in fixed installed watermakers that routinely cost $10,000 to $25,000 installed. The Scout packages them into an 18 kg carry case.
Head-to-Head: Key Specs Side by Side
- Power supply: Both run on 12V DC. The Scout draws 16 to 18 A, which a standard house battery with 200 to 400 W of solar handles without a generator.
- Output: The Scout is available at 10 LPH or 20 LPH. Rainman offers similar output tiers.
- Weight and portability: The Scout is 18 kg, single-person carry, no installation required. Drop the submersible feed pump over the side, connect the hoses, and you are making water within minutes.
- Salt rejection: Scout: 99.4%, output typically 250 to 300 ppm TDS.
- Built-in UV: Yes, standard on the Scout. Not standard on all Rainman configurations.
- Hour meter: The Scout has an internal hour meter to track running hours for service intervals, so you know exactly when maintenance is due.
- Pre-filtration: 5 micron cartridge filter on the Scout, field-replaceable. Compatible with an optional 2.5" x 10" housing for longer intervals between filter changes.
- Servicing: Scout: lifetime in-house servicing on the Gold Coast. Parts are non-proprietary and available from LEDI or sourced globally. You are not locked into a single service centre.
- Price: Scout bought direct from the manufacturer, with no dealer margin. Rainman: check current Australian retail pricing, but typically higher when bought through a dealer.
Where the Scout Feeds From, and How Far It Can Reach
The Scout ships with a submersible feed pump on a 5 m hose. You drop it over the gunwale or clip it to a seacock fitting and plug it into the Scout's SP13 connector. No through-hull work, no plumbing, no installation. For longer runs, the Scout Auxiliary Feed Pump handles moderate distances, and the Nomad Auxiliary Feed Pump can reach roughly 20 to 30 m horizontally and up to 5 m of vertical lift. Both use the same SP13 connector, so either plugs straight in without an adapter.
This matters when you are comparing portables: Rainman and Scout are both designed for drop-in use rather than permanent plumbing, which is exactly the right approach for a trailer sailer, a cruising yacht up to 50 feet, a catamaran, or a 4WD expedition where you want fresh water on demand and the unit back in its bag when you are done.
When the Scout is the Right Choice
The Scout suits:
- Trailer sailers and cruising yachts from 20 to 50 feet that do not need a permanently installed system
- Catamarans where deck or locker space is valuable
- Campers and 4WD tourers who want water from a river, dam or the sea without carrying tanks
- Sailors who want a backup watermaker even if they have a fixed system aboard
- Anyone who wants to own and service their own unit, with parts available from a single local source
If your daily demand is higher, say 40 to 80 litres per hour for a liveaboard, a charter boat or a larger crew, the LEDI Nomad comes in single- and double-membrane versions and offers 40, 60 or 80 LPH with an integrated control panel, TDS monitor and flow meter as standard. If you want the system hidden below decks, the Modular series is worth a conversation with the team.
Servicing, Spares and Support
This is where Australian-made genuinely matters. When you call LEDI, you speak to the people who built the unit, not a call centre. Spare parts post Australia-wide and internationally, usually within one business day. Wear parts are field-replaceable: swap a 5 micron pre-filter cartridge in minutes, or order a replacement RO membrane when output genuinely falls off (which, with regular flushing and proper pickling for storage, should be years away). The full spares range is stocked and available without going through a dealer. The Scout comes with a one-year warranty, extended to two years when you register the unit.
With an imported system, warranty and service run through an Australian dealer or back to the overseas manufacturer. If you are cruising remotely, that supply chain gets long very quickly.
Honest Trade-offs to Consider
Neither the Scout nor any portable watermaker is a magic solution. A portable 12V system is less output-efficient per dollar than a large fixed installation, and it requires manual operation rather than a push-button auto cycle. The pre-filter needs changing every 10 to 40 hours depending on water quality (it is a cheap, quick swap). The membrane needs a freshwater flush after every use and pickling for storage. Every one of these steps is straightforward, and every part is replaceable in the field. But if you want set-and-forget automation, the Nomad is autoflush-compatible, and the Modular series has a remote control panel and auto freshwater flush built in.
On noise: the Scout runs at around 65 dB, roughly the level of a dishwasher. Quiet enough to run in an anchorage without disturbing the boat next door, but not silent.
Frequently Asked Questions
How does the Rainman portable watermaker price compare to the LEDI Scout?
Rainman systems sold through Australian dealers typically land above $6,000 AUD for a comparable configuration, before accounting for dealer margin and import costs. The LEDI Scout is sold direct from the manufacturer on the Gold Coast, with no importer or dealer margin. See current pricing on the Scout page. Always confirm current Rainman retail pricing with an Australian dealer, as prices can change.
Can the LEDI Scout run on solar without a generator?
Yes. The Scout draws 16 to 18 A at 12V DC. A standard house battery bank with 200 to 400 W of solar is enough to run it comfortably. No generator is needed, which matters for quiet anchorages and remote off-grid locations. See Running a Watermaker on Solar Power for a more detailed breakdown.
Does the Scout need to be installed on the boat?
No. The Scout requires no installation. Drop the submersible feed pump over the side or onto a seacock, connect the hoses, plug into your 12V supply, and you are making water within minutes. The whole unit weighs 18 kg and can be carried by one person. For a full overview of what is involved, see Portable vs Installed Watermaker.
What if I need more water than 20 LPH?
Step up to the LEDI Nomad, which produces 40, 60 or 80 LPH at 12V or 24V DC. It is built for liveaboards, larger crews, charter use and longer passages. Both single- and double-membrane versions are available. Contact the team at info@ledi.com.au or on +61 494 562 668 to match the right unit to your needs.
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