How Much Does Boat Desalination System Installation Cost?
The average desalination system installation for a boat typically costs between $500 and $5,000 in labor, depending on system size, complexity, and location. Most projects take 1 to 5 days to complete, including plumbing, electrical, and testing work. Installation requirements vary based on your vessel’s layout, but expect to allocate space for the pre-filters, high-pressure pump, membranes, and control panel.
This guide breaks down exactly what to expect when installing a marine desalination system, including costs, timelines, space and power requirements, and what makes ECHOTec Watermakers a top choice for reliable, easy-to-maintain systems worldwide.
Understanding the Desalination System Installation Process
Installing a boat watermaker involves several critical steps, from site preparation to final water quality testing. Whether you’re installing it yourself or hiring a marine technician, here’s what the process generally includes:
Assessment & Planning
- Evaluate the vessel’s layout and available space for components.
- Confirm access to through-hulls for seawater intake and brine discharge.
- Check available electrical and power supply options (DC, AC, or engine-driven).
Component Mounting
- Secure mounting locations for the high-pressure pump, pre-filters, membranes, and control panel.
- Systems like ECHOTec Watermakers use modular layouts, making installation flexible even in tight spaces.
Plumbing & Electrical Connections
- Connect seawater intake, brine outlet, and product water lines.
- Wire pumps and control units to the vessel’s power system.
- Ensure proper ventilation and protection from moisture.
System Testing & Commissioning
- Flush the system, check for leaks, and measure output salinity.
- Adjust pressure and flow rates for optimal operation.
- Verify that the system produces freshwater within specifications.
ECHOTec’s systems are designed for straightforward installation, whether done professionally or as a DIY project by experienced owners.
How Long Does Installation Take?
For most boats, desalination system installation takes 1 to 5 days, depending on vessel size, system capacity, and complexity of existing plumbing and wiring.
- Small systems (up to 15 GPH): 1 to 2 days for professional installation or 3 to 4 days DIY.
- Mid-size systems (20 to 40 GPH): 2 to 4 days, including electrical integration.
- High-capacity commercial units: Up to 5 days or longer, especially if custom mounting or cabinetry is required.
A professional installer familiar with ECHOTec systems can often complete the project faster due to the system’s modular design and accessible fittings.
Cost Breakdown: Labor, Materials & Customization
Total installation costs depend on whether you hire a professional, perform the work yourself, or add custom configurations.
CategoryEstimated Cost RangeDetailsProfessional Labor$500 to $5,000Depends on system size and local labor ratesElectrical & Plumbing Materials$100 to $800Hoses, valves, fittings, clampsThrough-Hulls & Seacocks$150 to $500For intake and brine dischargeTesting & CommissioningIncludedWater quality testing and calibrationSystem Customization$500 to $2,000+Custom cabinetry, mounts, or power integration
DIY installations can save on labor but may require marine-grade tools and technical knowledge of plumbing and 12V/24V electrical systems.
Space & Mounting Requirements
Before installation, identify a dedicated space for your marine desalination system.
Typical space requirements include:
- Pre-Filters: Mounted near the seawater intake for easy access.
- High-Pressure Pump: Installed low in the bilge or engine room.
- Membrane Housing: Placed horizontally or vertically in a cool, dry space.
- Control Panel: Mounted in a visible location near the helm or service area.
ECHOTec’s modular watermakers are specifically engineered for yachts and catamarans with limited space. Each component can be positioned independently, allowing flexible layouts that don’t compromise maintenance access.
Power & Electrical Considerations
Marine watermakers typically draw between 200 and 1,200 watts, depending on output. Choosing the right power setup ensures consistent freshwater production without overloading your system.
Common power configurations:
- DC (12V or 24V): Ideal for sailboats and solar-powered vessels.
- AC (110V/220V): Best for yachts and motor vessels with generators.
- Engine-driven: Highly efficient for high-output systems.
ECHOTec offers systems that can be powered by solar, generator, or hybrid setups, making them suitable for long-range cruisers who prioritize energy efficiency and independence.
Ventilation & Environmental Factors
Proper ventilation and placement are key to long-term reliability. The installation area should be:
- Dry and well-ventilated, avoiding direct heat or humidity.
- Accessible for filter changes, pump inspection, and maintenance.
- Protected from vibration, ensuring quiet and efficient operation.
Marine-grade hoses and corrosion-resistant fittings are essential for preventing leaks and prolonging system life. ECHOTec components meet international standards (NEMA, API, ASTM, NSF, BSI), ensuring top-tier safety and performance.
Certification & Compliance Requirements
Professional installation may be required for commercial vessels, charter fleets, or regulated territories. Installers may need to adhere to:
- ABYC or ISO marine standards for electrical safety.
- USCG or CE compliance for vessel operations.
- Manufacturer guidelines for warranty coverage.
ECHOTec’s certified dealers and technicians follow strict installation protocols to maintain compliance with international marine safety standards.
Maintenance After Installation
Once your system is installed, routine care keeps it running efficiently for years.
Maintenance checklist:
- Replace pre-filters every 100 to 200 operating hours.
- Clean membranes with ECHOTec-approved solutions when output declines.
- Flush the system with freshwater after each use.
- Inspect hoses and fittings for corrosion or vibration wear.
With proper maintenance, ECHOTec Watermakers can last over 15 years, providing dependable freshwater on every voyage.
Conclusion: Smooth Sailing Starts with Proper Installation
A successful boat desalination system installation depends on planning, precision, and high-quality components. Systems from ECHOTec Watermakers are designed to simplify the process with flexible layouts, durable materials, and global support.
Whether you’re upgrading your yacht, outfitting a new vessel, or preparing for long-distance cruising, ECHOTec’s systems deliver reliable freshwater independence anywhere on the planet.


