We service and repair reverse-osmosis watermakers on board: pre-filters, membranes, high-pressure pumps, salinity controls, and pickling for lay-up. Brands include Sea Recovery, Spectra, Schenker, Dessalator, HRO, EchoTec, Idromar and Aquatec.
Emergency response
2 hours · 24/7
Certified technicians
MCA · Lloyd's · Spanish maritime authority
Coverage
Palma-based · mobile throughout the Balearics
Assessment & quote
Within 2 hours
A watermaker is a simple idea that needs careful handling: seawater pushed at high pressure through a membrane fine enough to hold back the salt. Look after the pre-filters, flush it properly and pickle it when it's laid up, and it will run for years. Skip those, and the membranes are usually the first thing to go.
We service and repair reverse-osmosis systems from compact units on sailing yachts to multi-membrane plants on superyachts. That covers pre-filtration, high-pressure pumps, membranes, controls and product-water quality, plus the routine things that keep them that way.
Sea strainers, pre-filters and carbon filters changed, boost pumps and the fresh-water flush checked. Most membrane damage starts upstream of the membrane.
Membrane cleaning, or replacement when output or salinity can't be recovered, with pressure vessels and seals inspected while the system is open.
Seals, valves and oil changed, leaks repaired, and pressure-regulation and relief valves checked.
Salinity probes and product-water diverter valves, flow meters, pressure sensors and control panels checked, so poor-quality water goes overboard instead of into the tank.
Preserving the membranes for winter lay-up and bringing the system back into service in spring.
Advice on replacing an old unit or adding capacity, matched to the yacht's power supply, water use and space.
| What you notice | Usual cause |
|---|---|
| Output has dropped | Clogged pre-filters, low feed pressure, a fouled membrane, or simply colder or saltier water. Change the filters first and compare. |
| Salinity alarm, or water tastes salty | A worn or damaged membrane, a failed O-ring on the membrane housing, or a faulty salinity probe or diverter valve. |
| High-pressure alarm or shutdown | A fouled membrane, a stuck or wrongly set pressure regulator, or a blockage on the brine side. |
| Low-pressure alarm | Feed water isn't getting through: a blocked strainer or pre-filter, a weak boost pump, or air getting into the intake. |
| Rotten-egg smell when starting | Bacterial growth while the unit stood unused without a proper flush or pickling. It usually needs cleaning, and sometimes a new membrane. |
| Water around the high-pressure pump | Worn pump seals or a leaking fitting. Have it seen to before it gets worse. |
This is a guide, not a diagnosis. If anything affects safety, stop and call us on +34 971 251 374.
Manufacturers whose equipment we service. Not listed? Send us the make and model.
Reverse-osmosis systems widely fitted to motor yachts and superyachts.
Low-energy watermakers built around the Clark Pump energy-recovery design, popular on sailing yachts and catamarans where power is limited.
Italian watermakers that use energy recovery to cut power consumption, common on sailing yachts and smaller motor yachts.
French watermakers in a wide range of capacities, including Duo models that can run on either electrical or engine power.
Reverse-osmosis systems across a wide range of sizes. The principles are the same; the controls, pumps and spares differ.
Plenty of Mallorca-based yachts use the watermaker hard for a few months and then leave it for weeks between charters or over the winter. That gap is when membranes suffer. Flush with fresh water after every run, pickle for lay-up, and never run it in harbour water or near a river outlet.
The more of this we have, the better our chances of arriving with the right parts. The online booking asks for it step by step.
Book online, upload photos of the problem and our AI technical assistant asks the follow-up questions an engineer would ask. Our team receives a structured job brief, so the right technician arrives with the right parts.
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AI triage
Job brief for engineers
Contact
Immediate
Call +34 971 251 374 or WhatsApp +34 674 427 692 for immediate response.
Assessment & Quote
Within 2 hours
Our certified technicians assess your yacht's needs and provide a detailed quote.
Scheduling
Same day
We coordinate with your schedule and marina requirements to minimise disruption.
The work
Per quote
Certified engineers carry out the job as quoted, using quality parts and meeting the relevant compliance requirements.
Testing and follow-up
Ongoing
We test what we've worked on, hand over the documentation and stay available if anything comes back.
Sea Recovery, HRO Systems, EchoTec, Idromar, Spectra, Schenker, Dessalator and Aquatec.
The most common causes are clogged pre-filters, low feed pressure and a fouled membrane. Colder or saltier water also reduces output. Change the pre-filters first; if output doesn't recover, the membrane may need cleaning or replacing.
The water being produced is too salty. It could be a worn or damaged membrane, a leaking seal on the membrane housing, or a faulty salinity probe. The diverter valve should be sending that water overboard; don't bypass it.
If it's going to stand unused for longer than the manufacturer allows between fresh-water flushes, yes. We can pickle it when you lay up and recommission it in spring.
Yes. Servicing, membrane changes and pump repairs are done on board wherever the yacht is berthed in Mallorca or the Balearics.
Need it fixed?
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