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Watermaker & Desalination Service
A reliable watermaker transforms cruising. Anchorages that would otherwise require port calls every 10 days become open-ended. Long passages are no longer rationed. For most cruisers planning extended time at anchor, a watermaker is among the most life-changing investments.
Main brands and types
- Spectra Watermakers (USA): Modular, energy-efficient, cruiser-favorite. Cape Horn, Newport, Ventura models common.
- Schenker (Italy): Similar architecture, strong EU/Med presence.
- Katadyn (Switzerland): Smaller systems, manual options available.
- Sea Recovery / Horizon: Higher output, more typical on larger yachts.
- FCI Watermakers: US-made, full size range.
What it costs
| Item | Common range (USD) | Notes |
|---|---|---|
| Mid-range watermaker (Spectra Cape Horn or similar) | $4,500–9,000 | 15–30 GPH |
| High-output watermaker | $8,000–15,000 | 40–80 GPH |
| Manual watermaker (emergency) | $1,800–3,500 | Katadyn Survivor |
| Installation labour | $1,500–3,500 | 40-foot boat |
| Through-hull + plumbing | $500–1,200 | If new install |
| Membrane replacement | $600–1,500 | Every 5–10 years |
| Annual service kit | $150–350 | Filters, pickling |
Maintenance
- Daily use: Run regularly to keep membrane wet.
- Storage / layup: Pickle with biocide. Critical — dry membrane is dead membrane.
- Filter changes: Primary every 50–100 hours. Carbon less often.
- Annual: Full service kit, check high-pressure hoses, inspect pump.
- Every 5–10 years: Membrane replacement.
Frequently asked questions
Which brand?
Spectra (cruiser favourite), Schenker (EU), Katadyn (small/manual), Sea Recovery (high output).
Size?
1.5–2x daily need. Most cruisers 15–30 GPH.
Install cost?
Hardware $4,500–9,000. Labour $1,500–3,500.
Membrane life?
5–10 years with proper care. Replacement $600–1,500.
Service?
Spectra and Schenker have global networks. Major hubs have trained technicians.