Reverse osmosis water and distilled water are both popular forms of clean water. However, many individuals might not understand the distinction between the two. These two generally relate to water purification methods that produce water free of impurities. They do so via distinct treatment procedures.
However, both distilled water and reverse osmosis have advantages and disadvantages. So, how do you decide which one is best for your family?
Here, we will compare reverse osmosis and distilled water in detail, so you can make the right choice about your water purification system.
What is Reverse Osmosis?
Reverse osmosis, sometimes known as RO, is an advanced filtration technique that removes impurities from water by forcing molecules through a semipermeable membrane with pressure. This membrane is designed to allow molecules to pass through while blocking bigger particles and contaminants.
Learn more here about what a reverse osmosis system commonly removes:
- Heavy metals like lead and arsenic
- Chlorine
- Pesticides
- Bacteria and viruses
- Dissolved salts
Reverse osmosis systems ensure highly pure water by removing up to 99% of impurities.
What is Distilled Water?
The process of making distilled water is known as distillation. It involves boiling the water until steam is produced. Following boiling, the steam condenses in the condenser and cools as pollutants and impurities settle at the base of the distillation system. This method produces highly pure water with very few dissolved particles.
The distilled water process commonly removes:
- Minerals
- Heavy metals
- Salts
- Bacterias
- Chemicals with high boiling points
The distilled water process is commonly used in sectors such as chemicals, pharmaceuticals, and beverages to separate mixtures, extract desired compounds, and purify liquids.
Reverse Osmosis and Distilled Water: Key Comparison
Are you considering installing a water filtration system between reverse osmosis and distilled water? Here’s a simple comparison to help you:
Purification Method Comparison
Reverse osmosis uses a multi-stage membrane filtration process, while distilled water involves a combination of boiling and condensation to remove contaminants.
In simple terms, reverse osmosis water purification relies on filtration technology, while distilled water purification relies on thermal separation.
Impurity Removal Comparison
While distilled water is best at removing organic pollutants, such as bacteria and viruses, reverse osmosis is best at removing minerals, salts, and other inorganic components from water.
However, distilled water removes almost all impurities completely. Still, many people choose water with some natural mineral content, and often prefer reverse osmosis water.
Cost Comparison
Reverse osmosis systems can be more costly initially, but they are made to survive for many years without any service. RO systems are more cost-effective for long-term household use.
On the other hand, distilled water is generally more expensive to produce due to the energy-intensive boiling and condensation processes.
Taste Comparison
Distilled water is often considered neutral and clean, and some people enjoy its taste as it contains zero minerals.
Reverse osmosis water usually tastes better than tap water. However, it could taste slightly different from distilled water because it might still include some minerals. It is advised to prepare tea or coffee with RO water.
Performance Comparison
Reverse osmosis water could remove over 99% of contaminants and the majority of dissolved materials, while preserving certain minerals.
Distilled water can eliminate nearly all contaminants and is incredibly pure. It is described as one of the clearest waters.
Reverse Osmosis or Distilled Water: Which One is Better?
The choice between distilled water and reverse osmosis depends on your specific requirements and the type of water impurities you wish to eliminate.
Choose reverse osmosis if you want:
- Better waste taste
- Cost-effective water purification solution
- Faster water production
- Lower energy consumption
Choose distilled water if you want:
- Completely clearest water
- Mineral-free
- Water for medical or lab purposes
- Water for appliances
Besides, you should also know that RO filters need to be changed every 8-12 months, and membranes should be changed every few years. Distillers primarily need to have their carbon filters changed and cleaned on a regular basis.
Conclusion
Both distilled water and reverse osmosis water are great sources of pure water. The ultimate decision is based on your unique requirements and preferences. Distilled water is the best option for maximum purity, while osmosis water offers a better balanced cost and taste. When deciding between the two, it’s important to consider your budget, the type of water impurities you wish to remove, and the desired water quality.
