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Reverse Osmosis vs Deionized Water

Published by Passaic Bergen Water Softening on


Water is a vital element in our lives. At PB Water Softening, we are committed to providing the best quality of water to our customers. If you want to provide top-notch water that is clean and safe for your family or business, we are here to help.  We offer a variety of water treatment services including both deionized water systems and industrial reverse osmosis systems.

What people think is best has always been a contentious subject. Everyone has their own opinion on what is best for themselves and others, and water is no exception to this. With so many types of filtration out there, it is up to debate which one is the best.

Reverse Osmosis Water

The reverse osmosis process is made up of three different stages. These stages include pre and post-filtering as well as the reverse osmosis process itself. Water flows to the pre-filter, where a cartridge removes multiple types of sediments. Then, the water flows through another cartridge, turning it into purified water. The water is then ready for consumption and stored into a storage tank. Reverse osmosis tanks usually can hold about two to four gallons. The remaining sediments are deposited down a drain. Then, the post-filtering process takes place. This helps to remove odors and other elements from the remaining water in the storage tank.

Benefits Of Reverse Osmosis 

Reverse osmosis has been proven as the most effective method of removing harmful contaminants from water. This process is highly recommended by experts in the field. The reverse osmosis process has been used to purify water for industrial and printing processes that need mineral-free water. Additionally, it has been proven to successfully remove lead from water. Drinking reverse osmosis water will help reduce the cost of plastic water bottles, which will help offset the cost of a reverse osmosis filter. With a reverse osmosis filter, your water will taste better and be safer.

Deionized Water

Deionized water is made by running water through an electrically charged resin, removing all ions. Usually, the process uses a mixed-ion exchange bed with both positive and negatively charged resins. Deionized water is on tap. This is due to the fact that deionized water degrades relatively quickly, so there is no reason to store the already purified water. Some studies have shown that drinking deionized water may cause people to urinate more and eliminate more electrolytes from the body. However, if you’re getting enough vitamins and minerals from the food you eat, this should not be a problem.

Benefits of Deionized Water

One of the main benefits of deionized water it that it is more efficient at cleaning than tap water. Due to its purity, it is environmentally friendly and quickly becoming a trend in eco-friendly cleaning. Deionized water is even more pure than distilled water. Deionized water is also the preferred choice in many factory and manufacturing settings, as it avoids the buildup of salts on machinery. It is also the preferred choice for aquariums.

What Reverse Osmosis and Deionized Waters Do

What reverse osmosis and deionization both have in common is that they excel at removing contaminants and minerals from water. Depending on the filtration system, these processes are both efficient in removing harmful components of water such as:

– salt

– arsenic

– sand or dirt 

– magnesium 

– calcium 

– copper 

– iron

The Big Difference Between Reverse Osmosis And Deionized Water

To reiterate the difference between these two filtration processes, reverse osmosis uses a semipermeable membrane to filter water. Deionization utilizes ion exchange to replace minerals and contaminants. Additionally, reverse osmosis water is great for drinking and cooking, and while deionized water can ensure your water is free from harmful minerals and ions, it may taste bad.

The main difference between the two kinds of water is the level of purity. Reverse osmosis water is cleaned for drinking but still saturated with salts and oxygen. Deionized water removes those salts and oxygen, but not the dissolved solids found in water.

How to Decide Which One is Best for You

When choosing the best water filtration system, it’s important to first decide what the water will be used for. Our team of experts would be happy to help match you with a water filtration system that best suits your needs.

Contact us today to learn more about getting safe water!



Wyckoff NJ

537 Goffle Rd
Wyckoff, 07481


Monday-Friday: 9:00 AM-5:30 PM
Saturday: 9:00 AM-1:00 PM
Sunday: Closed

Newfoundland NJ

2850 Route 23 North
Newfoundland, 07435


Monday Tuesday Wednesday Friday: 9:00 AM-5:30 PM
Thursday: 9:00 AM-6:00 PM
Saturday: 9:00 AM-1:00 PM
Sunday: Closed

Wayne NJ

2025 Suite B, Hamburg Turnpike, Wayne, NJ 07470


Monday Tuesday Wednesday Thursday Friday: 9:00 AM-5:30 PM
This office isn’t open on Saturday as it is not a retail location.