Choosing a portable watermaker is easier when you compare them side-by-side. Here’s an updated 2025 comparison of the Scout SW20, Rainman, and Spectra portable units.
Key Factors to Compare
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Output
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Energy draw
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Weight
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Noise
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Maintenance
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Cost to run
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Australian support availability
Comparison Table
| Feature | Scout SW20 | Rainman | Spectra |
|---|---|---|---|
| Output | ~20 L/hr | 30–35 L/hr | 17–25 L/hr |
| Weight | Low | High | Medium |
| Power | 12V | 12V / 240V | 12V |
| Build | Stainless steel pump | Mixed | Composite |
| Best for | Small boats, caravans | Boats w/ generator | Long-range cruisers |
View the Scout SW20 here:
https://lediwatermaker.com/products/scout-sw20
Which Is Right for You?
Choose Scout if:
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You need a lightweight, Australian-made unit
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You run entirely on 12V
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You want simple maintenance
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You value local support
Choose Rainman if:
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You already run a generator
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You want maximum output
Choose Spectra if:
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You are fitting out a long-range offshore yacht
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Budget is higher
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You prefer ultralow power draw
FAQ
Is a portable system better than installed?
For boats under ~40 ft, often yes.
POST 5 — How to Install & Maintain a Portable Watermaker
Meta Description:
Beginner-friendly guide: how to install a portable watermaker, flush the membrane, and maintain your unit for long service life.
How to Install and Maintain a Portable Watermaker (Beginner-Friendly Guide)
Installing a portable watermaker is far simpler than installing a fixed unit. Here’s a complete guide for first-time owners.
Tools You’ll Need
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Intake hose
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Brine discharge hose
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Pre-filter housing
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12V power leads
Step-by-Step Installation
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Place the unit in a ventilated spot.
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Put the seawater intake hose into clean water.
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Secure the brine discharge line.
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Connect 12V power.
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Run the system until water quality stabilises.
The Scout SW20 installs in minutes:
https://lediwatermaker.com/products/scout-sw20
Maintenance Schedule
1. After Every Use
Flush with freshwater.
2. Every 20–50 Hours
Replace pre-filters.
3. Before Long-Term Storage
Use membrane preservation fluid.
Troubleshooting Basics
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Low output: check pre-filters and intake blockage
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High salinity: inspect membrane
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Pump won’t start: check voltage and wiring
FAQ
Do I need tools to install a portable system?
No tools required for most 12V units.
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