Do Water Purifiers Work On Saltwater?

People in coastal areas would have come across the problem concerning good drinking water. Rivers near the coastal areas are contaminated with salts and other impurities, making them dangerous for consumption. Even the groundwater contains a high TDS level even though the water passes through multiple layers of sediments to reach the water table.

Saltwater tastes flat, bitter, and unpleasant and can cause severe dehydration and even damage your hair. So, water purifiers that work on saltwater are a necessity for these people.

In this article, we will discuss a water purifier that can successfully separate the impure salts in the water, making it safe for consumption. Read on to know more about the Reverse Osmosis water purifier.


What is Reverse Osmosis (RO)?

Reverse Osmosis RO System

Reverse osmosis is a water filtration method invented by Jean Antoine Nollet in the 18th century. It was mainly used by the U.S. Navy abroad submarines to convert the contaminated seawater into a consumable form.

But later on, this process was used in water purifiers to filter the TDS (Total Dissolved Salts) and give good drinking water. TDS includes salts and other components (can be both pure and impure) present in water. High TDS can cause headaches, tiredness, muscle cramps, disturbed kidney functioning, and lower bone mineral density.

In RO filtration, pressure is applied to the water that contains TDS. This water passes through a specially designed semipermeable membrane (pore size is approximately 0.0001 microns). The membrane’s design only permits the pure water molecules to pass through, whereas the impure particles and other harmful large components retain.

Mainly reverse osmosis purifiers are used in places with contaminated groundwater, less rainfall (where rainfall harvesting is not possible like deserts), and places near coastal areas where water has a high salt concentration. However, it can also be in other places since it provides purified water.


What Happens To The Water After Reverse Osmosis?

Reverse Osmosis Filter

Reverse osmosis removes harmful substances like lead, sodium, mercury, chromium, and other impure salts. It also eliminates protozoa like Cryptosporidium and Giardia; bacteria like Campylobacter, Salmonella, Shigella, and E. coli and viruses like Enteric, Hepatitis A, Norovirus, and Rotavirus.

Apart from filtering just the harmful toxins, RO also filters 90% of the beneficial minerals needed by our body. So, valuable minerals like calcium, potassium, magnesium, etc., are removed as well.

We might think that it is not safe to consume RO water since all the good minerals are stripped off from the water. But, this is not the case since it is always better to drink water with no minerals instead of one filled with impurities. Plus, we will get only a tiny amount of minerals from the water, so a healthy diet can solve this problem.


Why Do We Need To Buy A Water Purifier That Works On Saltwater?

Listed below are a few reasons you need to use a RO water purifier if you live in places with saltwater.

  1. It is essential for people near coastal areas since freshwater lakes, rivers, and even groundwater are highly contaminated.
  2. You can consume clean, safe, and toxin-free water without worrying about health problems.
  3. The chance of a person catching any water-borne disease caused by pathogens, bacteria, and viruses is high.
  4. Saltwater cannot be used for washing dishes or cleaning clothes as it leaves a stain.
  5. Also, salt water can cause severe dehydration since your kidney can only treat water that contains less salt.
  6. Saltwater is terrible for your hair, i.e., your hair becomes weak and breaks. So, you need RO filtration if you don’t want hair to fall.
  7. The water with high TDS content tastes flat, bitter, and unpleasant. RO water tastes much better than high TDS level water.
  8. RO filtration is eco-friendly since there is an unlimited water supply. This means that you will not need to buy bottled water.
  9. Reverse osmosis water purifiers save energy in the long run, thus saving money as well.
  10. The Re-mineralization feature in the new RO filters removes the impurities and adds the good minerals back into the water.


Also Read:

How To Clean Water Purifier?

Tips To Maintain Your RO Water Purifier



A reverse osmosis water purifier is a water filter that efficiently works on saltwater. It is necessary for people in coastal areas because the rivers, lakes, and even groundwater are highly contaminated and unsafe.

Do you think this water purifier is useful for people near coastal areas? Comment and let us know your thoughts on the reverse osmosis water purifiers.

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I am tech writer who is passionate about technology and spearheads the core writing team on tech news

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