Portable Seawater Desalination: Frequently Asked Questions

How Much Fresh Water Can a Portable Desalination Machine Produce?

The WTEYA SW-4021 portable seawater desalination machine produces 300 GPD (about 1,200 liters per day, 50 liters per hour), enough drinking and domestic water for 5-8 people on boats, yachts, or coastal homes. Larger 4040 systems produce 7-9 tons per day with a single membrane, and up to 10-20 tons per day with multiple membranes in parallel.

Can Portable Desalination Run on Solar Power or Boat Batteries?

Yes. The SW-4021 supports 24V DC power from boat batteries or solar systems, in addition to standard 220V AC. Both power lines must be connected simultaneously before starting. Solar-powered desalination is ideal for off-grid islands, coastal camps, and emergency use.

Is the Produced Water Safe to Drink?

Yes. RO membranes reject more than 99% of dissolved salts, and the water passes through UV sterilization (254nm). Product water quality meets drinking water standards: total coliforms not detected, bacteria count below 100 CFU/mL, and TDS below 1,000 mg/L.

How Much Does a Portable Desalination Machine Cost?

The price depends on model, power configuration, and accessories. The SW-4021 portable unit offers the best value for boats and yachts, while 4040 systems serve small communities and resorts. Please contact WTEYA for a quotation based on your specific needs and water source.

How Do I Maintain a Portable Desalination Machine?

Maintenance is simple: clean the pre-filters every 5-60 hours of use (depending on seawater clarity), replace the RO membrane after more than 3,600 operating hours (about 180-360 days), change the UV lamp after 3,000 hours, and change the plunger pump oil every 500 hours using CKD220 gear oil. For long-term storage over 3 days, use a 1%-1.5% SMBS preservation solution.

Can I Get a Customized Desalination Solution?

WTEYA has nearly two decades of experience serving more than 2,000 clients. We offer customized solutions for boats, yachts, islands, resorts, emergency response, and industrial applications. Contact our engineers to design the right system for your water demand and site conditions.

📲 WhatsApp: +86-1802 5185 143

📧 Email: sales@wteya.com
🌐 Website: www.wteyaa.com