Convert Seawater To Drinking Water 
Built for Residential Homes, Docks, Commercial Business​es 
Seawater Desalination for Residential and Commercial Use

RainDance Water Systems: Leading the Way in Desalination
For nearly two decades, RainDance Water Systems has been at the forefront of seawater desalination, providing cutting-edge solutions across the US and worldwide—from California and Florida to Texas, Singapore, Oman, Belize, the Bahamas, the Virgin Islands, and Hawaii.

Customized Desalination Systems
Our seawater desalination systems are tailored to meet the specific needs of residential homes, docks, and commercial businesses. Unlike standard reverse osmosis (RO) units used for surface or well water, our seawater desalination systems are designed to handle the unique challenges of seawater.

Understanding the Differences: Seawater vs. RO Systems
  1. Pressure Requirements:
    • Seawater Desalination: Seawater contains approximately 35,000 mg/l of dissolved solids, requiring around 350 psi to start the purification process. To ensure a consistent flow, seawater desalination units typically operate at around 1,000 psi.
    • RO Systems: Surface and well waters usually have dissolved solids around 6,000 mg/l or less. This translates to a starting pressure of 60 psi, with RO units generally operating between 150 and 250 psi.
  2. Material and Design:
    • Seawater Systems: Due to the high pressure and corrosive nature of seawater, these systems are built with non-corrosive materials and larger, more robust components. This increased durability is essential to withstand the harsh conditions and ensure a long operational life.
    • RO Units: Designed for less demanding conditions, RO units are made with materials suited for lower pressure and less corrosive environments.

Investment and Cost Considerations
Seawater desalination systems are more costly than RO units due to the higher pressures and specialized materials required. However, their ability to deliver fresh, drinkable water from seawater makes them an invaluable asset in coastal and marine locations.

​Choose RainDance Water Systems for Reliable Desalination
Whether you're looking to equip a residential home, a dock, or a commercial establishment, RainDance Water Systems offers customized seawater desalination solutions that meet your needs with unparalleled efficiency and durability.
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Seawater desalination system
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​RainDance-SSW-600 Seawater Desalination System
Capacity: 600GPD (24hr)
Max TDS: 50,000ppm
Turn Seawater Into Drinking Water
Applications: Whole House, Vacation Homes,
Docks, Resorts, Cottages, Emergency Back-Up Seawater Filter
Prices Start @ $16,995
RainDance-SSW-1200 Seawater Desalination System
Capacity: 1,200GPD (24hr)
Max TDS: 50,000ppm
Turn Seawater Into Drinking Water
Applications: Whole House, Vacation Homes,
Docks, Resorts, Cottages, Emergency Back-Up Seawater Filter
Prices Start @ $17,995
RainDance-SSW-1800 Seawater Desalination System
Capacity: 1,800GPD (24hr)
Max TDS: 50,000ppm
Turn Seawater Into Drinking Water
Applications: Whole House, Vacation Homes,
Docks, Resorts, Cottages, Emergency Back-Up Seawater Filter
Prices Start @ $18,995
RainDance-SSW-2200 Seawater Desalination System
Capacity: 2,200GPD (24hr)
Max TDS: 50,000ppm
Turn Seawater Into Drinking Water
Applications: Whole House, Vacation Homes,
Docks, Resorts, Cottages, Emergency Back-Up Seawater Filter
Prices Start @ $19,995
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Product Features Summary

Essential Requirements:
  • Seawater Delivery Pump: Required separately. Must deliver seawater at a minimum rate of 5 gallons per minute (gpm) at 30 pounds per square inch (psi).
Operational Process:
  1. Pre-filtration:
    • Seawater is first filtered through an integrated sediment prefilter to remove dirt, sand, and debris, protecting the RO membrane.
    • Additional pretreatment may be necessary for high mineral or contaminant levels to prolong system life.
  2. Desalination:
    • Prefiltered water enters the Reverse Osmosis (RO) system, where it undergoes desalination to become purified.
  3. Post-Treatment:
    • Purified water is collected in a separate storage tank.
    • A repressurization pump is required to deliver pressurized water to taps.
  4. System Control:
    • A computer controller monitors and regulates the system, checking feed water pressure, storage tank levels, and water conductivity.
    • It manages the high pressure pump and control valves based on sensor readings, with options for adjusting set points and flush parameters.
  5. Automatic Membrane Flush:
    • After each shutdown, the system automatically flushes the membranes to protect against mineral buildup.
  6. Salinity Monitoring:
    • Continuous electronic monitoring with digital readout. Measures TDS (Total Dissolved Solids) in parts per million (ppm), suitable for seawater with up to 50,000 ppm TDS.
Construction and Durability:
  • Components:
    • Corrosion-resistant frame.
    • Fiberglass membrane housings.
    • 316L Stainless Steel high-pressure pump, tubing, and fittings.
  • Design:
    • Built to withstand high pressure and salinity environments.
Optional Add-Ons:
  • UV disinfection systems for virus and bacteria removal.
  • Hard water and scale prevention systems.
  • Additional water storage tanks and repressurization pumps.

​This detailed breakdown highlights the system's operational steps, essential components, and durability, providing a comprehensive understanding of its capabilities and requirements.

Contact RainDance Water Systems
For personalized assistance, contact RainDance Water Systems. Our team is ready to help you select the best solution for your water quality demands.
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