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Does Reverse Osmosis Remove Sodium From Softened Water?

does reverse osmosis remove sodium from water


Do you have concerns about the sodium content in your water? It’s crucial to know how much sodium softened water contains if you have high blood pressure or eat a low-sodium diet. By installing a water filter, you can manage it.

Sodium is a naturally occurring mineral that may be found practically in the food you eat. The reverse osmosis filter systems can eliminate pollutants and 98 percent sodium from the drinking water. 

This article will dispel the practical approach for lowering salt/sodium levels with the help of reverse osmosis filters and ensuring you’re drinking the healthiest water. In this blog, you’ll know:

  • Role of sodium, How does reverse osmosis remove sodium from water
  • And How does reverse osmosis and water softener work together?

Let’s begin!

What is the role of sodium in Our Body?

According to the Dietary Guidelines for Americans, the recommended sodium level for Americans is less than 2,300 mg per day. It helps maintain the body’s water and electrolyte balance (the quantity of fluid within and outside the cells). Sodium is also necessary for the proper functioning of neurons and muscles. The majority of salt in the body (about 85%) is contained in blood and lymph fluid.

Daily, the average American consumes about 3,400 mg of sodium. However, table salt and processed and prepared meals like cold cuts, canned soups, fast food, and frozen dinners account for the great bulk of sodium intake. 

Effects Of Sodium In Drinking Water

According to the APA, in a survey of 2100 water samples taken in the United States between 1963 and 1966, sodium ion concentrations were found to be in the range of 0.4–1900 mg/liter; 42 percent of the samples had values greater than 20 mg/liter, and 5% had concentrations greater than 250 mg/liter.

Excessive salt consumption exacerbates chronic congestive heart failure, and adverse consequences from high sodium levels in drinking water have been recorded. When the level of sodium (salt) in drinking water is greater than 20 milligrams per liter, the following persons should be aware who have:

  • High blood pressure.
  • Heart or circulatory disease.
  • Kidney difficulties.
  • Low-sodium diet.

How to Remove Sodium By Reverse Osmosis Filters

Reverse Osmosis Remove Sodium From Drinking Water:

But, to address our issue, let’s have a look at the most common stages of filtering for a RO system. They can consist of any of the following:

  • Sediment Filtration
  • Carbon granules and carbon blocks
  • RO Membranes
  • Water softener
  • Reverse Osmosis With UV Filters

Installing reverse osmosis can remove salt, arsenic, chlorine, lead, Coliform, Amoeba, and many other impurities. 

Like the iSpring RCB3P Whole House Reverse Osmosis System, these systems employ a five-stage ultra-filtration process that includes a pre-filter, a post-filter, and a semipermeable membrane. This membrane is where the magic happens since it is specifically engineered to eliminate concentrated contaminants, such as salt, leaving just clean, nutritious drinking water for you to enjoy.

You can remove the type of salt present in drinking water according to the stages of filtration present in the RO filters:

Physical salt particles are the simplest salt to remove from a RO purifier. These are often large enough to be taken up and removed by the sediment filters used in the RO process.
Dissolved sodium, which is not visible in water but can affect the flavor, necessitates a higher level of filtration. A high rejection RO membrane is your best bet for removing sodium.

To summarise, reverse osmosis systems remove 95 percent or more of all typical pollutants in water, including sodium.

Click to learn does reverse osmosis removes calcium and magnesium

Why do I Need To Install Reverse Osmosis and Water Softener Together?

Water softeners are water filters that remove sodium can remove certain minerals from hard water, but they can’t eliminate all of the impurities. Installing a water softener and a filtration reverse osmosis system softens the water while also filtering out the remaining impurities, resulting in clean drinking water by reverse osmosis.

While these two can give you high-quality drinking and cooking water, you must maintain them properly to get the most out of them. Water softeners make your water salty You should inspect and refill your brine tank for water softeners at least once a month. Know how to maintain the brine tank properly and only use high-quality salt in your water.

Keep an eye out for a layer of crust or sodium bridges that may form inside the softener, as this may reduce its performance. Always call a professional if you don’t know how to fix a problem. To ensure that you always have pure water, update the filters on your filtration reverse osmosis system once a year and the filtration reverse osmosis membrane at least every five years. Drain the water in your storage tank every two weeks to keep it fresh.

How to Remove Salt At Home Naturally (Other Than RO Filtration)

There are other methods than reverse osmosis to remove sodium at home naturally.


Boiling or evaporating the water will leave the sodium behind as a solid. You can distill the water if you want to gather it. This method works because sodium has a significantly higher boiling point than water.

Boiling the sodium water in a saucepan with a lid is one approach to separate sodium and water at home. Set the lid slightly off-center so that any condensation on the inside of the lid runs down the side and into a separate container.

Congratulations! You’ve just distilled some water. The so will remain in the pot after all of the water has been cooked away.


Evaporation is similar to distillation. It occurs at a slower rate. Fill a small pan halfway with sodium water. As the water evaporates, the salt will be left behind. Increase the temperature or blow-dry air over the liquid’s surface to speed up the process.

Pouring the sodium water onto a piece of dark construction paper or a coffee filter is a variation of this procedure. It makes getting the salt crystals out of the pan much easier than scraping them out.


Water softeners only add a little sodium to your water. You’ll have the most comprehensive, healthy water treatment option for your home if you add a filtration reverse osmosis system to remove the salt. The reverse osmosis removes sodium better among other filtration.


Some others question’s answers for our readers that might be helpful for reading.

Does Reverse Osmosis Remove Parasites?

Viruses and parasites are successfully removed by reverse osmosis. Cryptosporidium is protected by filters that say “reverse osmosis filtration” on the label. Micro-straining filters and other types of reverse osmosis filters can also be used. Look for a filter with a pore size of less than 1-micron.

How to Remove Salt from Softened Water for Plants?

There are no chemical methods for reducing the quantity of salt in your soil; however, you can do so manually by watering the afflicted soil frequently. It is referred to as leaching. Leaching removes salt from the soil and either push it deeper into the soil or washes it away.

Do Refrigerator Water Filters Remove Sodium?

The refrigerator filter does not remove the salt. For this purpose, you can install a reverse osmosis filter.

Does ZeroWater Filter Remove Sodium?

ZeroWater is the only filter system that reduces TDS to zero. It removes calcium, magnesium, iron, sodium chloride, and sulfides from the water.

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