NE-SWRO 3 TPD Desalination Unit

1. Is 3TPD freshwater production enough for daily use?

It depends on your actual water consumption. In most cases, 3 m³/day freshwater production is sufficient for small households, boats, yachts, RVs, or small resorts for basic drinking and domestic water use. Please note that this calculation is based on 24-hour continuous operation, equivalent to around 125L/hour. Peak water usage periods should also be considered when selecting the right seawater desalination system.

2. Can it really treat seawater directly?

Yes. Our seawater RO desalination system is designed for feed water with TDS ≤40,000 ppm, suitable for seawater and brackish water treatment. Typical seawater salinity is around 30,000–40,000 ppm, so it can be processed directly. The system is equipped with a pre-treatment filtration system to protect the expensive RO membranes.

3. Is installation and operation difficult? Is the manual version troublesome?

No. Although this economical seawater desalination unit uses manual operation, it is still simple and user-friendly. No professional knowledge is required. We provide operation videos, manuals, and clear valve markings. Most users can learn startup, flushing, and shutdown procedures within 5 minutes.

4. Is the system pre-assembled or do I need to install everything myself?

The unit is pre-integrated before shipment as a compact skid-mounted desalination system. You only need to connect the water inlet, power supply, and drain pipe, then follow the operation instructions for basic setup.

5. Can it run automatically without supervision?

Yes. The system supports automatic start/stop, tank level control, and pressure protection functions, allowing automatic unattended operation.

6. What kind of power supply is required?

The system supports 220V, 380V, and 440V power supply (customizable) without extra customization charges. It can also be configured for solar power systems, battery storage, diesel generators, or hybrid power solutions for off-grid seawater desalination applications.

7. How much electricity does it consume?

This low-energy seawater desalination system typically consumes around 1.5 kW depending on operating conditions.

8. Can it be used in off-grid or remote areas?

Yes. The system can operate with solar + battery storage, diesel generator, grid + diesel, or grid + solar hybrid solutions. It is ideal for islands, coastal homes, boats, remote areas, and unstable power environments.

9. What RO membrane brand do you use?

The system uses Korea LG seawater RO membranes (SWRO membranes) as standard, capable of removing more than 99% of salts, heavy metals, bacteria, and contaminants from seawater. Operating pressure is around 5.0–6.0 MPa with operating temperature between 20–45°C. Specified membrane brands can also be customized.

10. What type of high-pressure pump is used? How long is the service life?

Our economical seawater desalination series uses dedicated plunger-type high-pressure pumps matched to the freshwater production capacity. The material is SUS316L stainless steel with strong corrosion resistance for marine environments. Under proper operation and maintenance, the service life is typically around 5 years. Consumable parts such as bearings and impellers can be replaced separately.

11. How often should filters and RO membranes be replaced?

Pre-treatment filter cartridges usually need replacement every 0.5–1 month depending on feed water quality. RO membranes generally last 2–3 years under proper maintenance conditions.

12. What is the replacement cost for consumables?

The main consumable costs are filter cartridges and RO membranes. Filter cartridges usually cost around USD 2–3 each depending on specifications, and we normally provide spare filters with the order. RO membrane prices are approximately USD 290–680 per piece depending on model and brand.

13. What happens if there is abnormal pressure or system failure?

The system includes high and low-pressure protection with alarm functions. If abnormal conditions are detected, the system automatically stops operation to protect the equipment.

14. Is maintenance complicated?

No. Routine maintenance of the desalination unit mainly includes filter replacement and regular membrane flushing. The operation process is simple and can be completed by users themselves.

15. Is chemical cleaning required?

No chemical cleaning is normally required for this small seawater desalination machine. Daily membrane flushing with clean water is generally sufficient for routine maintenance.

16. How long is the warranty?

The complete seawater desalination system comes with a 1-year warranty covering major equipment against manufacturing defects. Consumables and replaceable parts such as membranes, filter cartridges, wear parts, chemicals, and filter media are not included in the warranty scope.

17. Do you provide engineer installation service?

This model is a small-capacity desalination machine with simple operation. Most customers can complete installation and commissioning through our video guidance within a few minutes. Engineer overseas service is usually arranged only for large or complex seawater desalination projects, or upon customer request. Related expenses such as engineer service fees, flights, and accommodation are normally borne by the customer.

18. Can the system be customized?

Yes. Freshwater production capacity, material configuration, power system, and control system can all be customized according to project requirements. OEM and ODM services are also available.

19. Do you offer any other water treatment equipment?

Not only desalination equipment, we also specialize in designing and manufacturing brackish water desalination equipment, ultrafiltration equipment, nanofiltration equipment, and many other water treatment equipment. It is our mission to bring new life to more water.100% guarantee your order, 1 year after-sales quality assurance. A professional design team is always online to solve your water treatment problems.