How Can Zero Water Filter Salt Water?

Saltwater filtration has many methods. Distillation is one of the most common methods.

High pressure heats and vaporizes salt-filled water in this process. These vapors are then sent to another chamber where salt is extracted industrially.

Short Answer

As a water filter technician, I know ZeroWater filters can filter salt water. Ion exchange technology in the ZeroWater 5-stage filter system removes all water impurities, including salts, metals, minerals, chlorides, fluorides, and other inorganic and radiological elements. 

The filter container range is the only 5-stage water filter that removes over 99% of dissolved solids. If your water has a high TDS, you may need to change the filters more often. However, one can first put the water through an old ZeroWater filter (one that reads 006 ppm TDS or higher) and then a new filter to greatly extend filter life.

ZeroWater filters saltwater easily. First, boil salt water for 20 minutes. Salt water becomes water vapor that lands on the lid, condenses into droplets, and fills the empty glass with clean, unsalted water. The water and glass in the pot will be hot, so wait before drinking. The ZeroWater filter uses ion-exchange resin and activated carbon to make zero-conductivity filtered water.

ZeroWater filters may cause salt water to taste or smell funny. ZeroWater removes all total dissolved solids (TDS) from tap water, so the water is pure and may absorb impurities in storage. To avoid this, rinse the filter, check the pitcher and other filter components, change the filter, use your TDS meter to check TDS levels in the filtered water, and filter cold water instead of warm or hot water.

ZeroWater filters filter saltwater well. The 5-stage filtration system removes over 99% of dissolved solids from water, including salts, metals, minerals, chlorides, fluorides, and other inorganic and radiological elements. Putting water through an old ZeroWater filter and then a new one extends the filter life. ZeroWater filters may cause water to taste or smell funny. Thus, you must rinse the filter, check the pitcher and filter components, change the filter, use your TDS meter to check TDS levels in the filtered water and ensure you are filtering cold water.

Water softening

Water softening removes minerals that cause limescale or reduce cleaning and cooking efficiency. It may also improve your drinking water’s taste and smell.

Chemically or through ion exchange, water can be softened. Ion exchange softeners are common in homes.

Hard water is passed through a bed of sodium-ion-charged spherical resin beads. Sodium ions soften water by replacing calcium and magnesium ions.

In a brine solution, excess sodium ions displace calcium and magnesium ions that had adsorbed on the beads, regenerating them.

Water softeners save money by preventing costly plumbing repairs, lowering detergent costs, and extending appliance and pipe life. Some systems lower water TDS by 25%.

Reverse osmosis

A reverse osmosis system’s semi-permeable membrane removes ions, unwanted molecules, and larger particles from water. Desalination removes most contaminants from water.

Most homeowners use reverse osmosis to improve their drinking and cooking water. Many households choose it for its efficiency, cost-efficiency, and ease of maintenance.

Pros of Reverse Osmosis

Reverse osmosis is an effective water filtration system that can remove up to 99%+ of dissolved salts (ions), particles, colloids, organics, bacteria, and pyrogens from feed water. It also reduces water chlorine to a safe level.


Distillation removes many impurities from water, improving its quality and health.

Multi-stage flash (MSF), multiple effect distillation (MED), and vapor compression distillations are the three main distillation methods. (VC). MSF distillation uses high pressure to lower the boiling point of liquid before allowing it to rise into a condensation chamber.

Developed in sugar refineries, MED distillation is older. For feedwater vaporization and distillate condensation, VC distillation uses waste heat evaporators.

Water with low total dissolved solids is produced by distillation, which removes dissolved minerals and other impurities. Drinking, medical sterilization, and manufacturing processes without mineral buildup are ideal.


Many sources pollute water that flows into rivers and oceans. Filtering out pollutants is necessary to keep these waters clean and safe for human consumption.

Water can be filtered to remove bacteria, algae, viruses, and fungi. It lowers chloride and sodium concentrations in the solution.

Filters are physical, biological, or mechanical barriers that allow fluid but block solid particles. It’s called the filtrate.

General filtration involves pouring a solution onto a filter and letting gravity pull the liquid down. Chemical technology often uses this method.

Cellulose or other materials make membrane filters thin. They have tiny pores that let liquid pass but block bacteria.