Home Blog Buyer's Guides Tap Water or Reverse Osmosis Water: Which is Better to Drink?

Tap Water or Reverse Osmosis Water: Which is Better to Drink?

by Dr. Jonathan Doyle - Updated February 14, 2025
Water is fundamental to life, and choosing the optimal sourceofdrinking water is essential for maintaining good health. In many European countries, tap water is widely available and regulated to meet safety standards , while reverse osmosis (RO) water has gained popularity among individuals seeking superior purity. However, the decision between tap water and reverse osmosis water involves various factors that extend beyond convenience and cost.
This article delves into a comprehensive comparison between tap water and reverse osmosis water, examining their respective benefits, limitations, and the factors that can influence your choice. Additionally, we will explore common water purification methods and offer guidance on selecting the best water to drink based on individual needs and preferences.

What Is Tap Water?

Tap water is the most common form of drinking water worldwide, readily available in most homes and businesses. It’s sourced from various bodies of water, including rivers, lakes, and aquifers, and is treated through local water treatment plants to make it safe for consumption. However, the quality of tap water can vary depending on the source and the effectiveness of the treatment process.

Benefits of Tap Water

Tap water, when properly treated and sourced from reliable areas, offers several key advantages. Below are some benefits.
tap water

Convenience and Accessibility

Tap water is readily available in most European homes and businesses. It’s just a faucet turn away, making it the most convenient option for everyday hydration.

Cost-Effective

Compared to bottled water or advanced water filtration systems , tap water is relatively inexpensive. It is often cheaper than purchasing bottled water or installing reverse osmosis systems, making it an affordable option for most households.

Mineral Content

Many European tap waters contain natural minerals, such as calcium and magnesium, which can provide health benefits. These minerals contribute to your daily intake of essential nutrients.

Drawbacks of Tap Water

Despite its many advantages, tap water does have some potential drawbacks that are worth considering.
a glass of dirty water

Potential Contaminants

Despite the regulations, tap water may still contain trace amounts of contaminants, such as chlorine, lead, or pesticides. Older pipes or issues in the local water supply can also introduce harmful substances into tap water, particularly in areas where water infrastructure is outdated.

Taste and Odor Issues

In some regions, tap water may have an unpleasant taste or smell due to the presence of chlorine or other chemicals used in water treatment. While generally safe to drink, some people may find these elements undesirable.

Variable Water Quality

The quality of tap water can vary significantly depending on location. Cities with older infrastructure or areas that rely on groundwater sources may have water with higher concentrations of impurities.

What Is Reverse Osmosis Water?

As concerns about water purity grow, many people are turning to reverse osmosis water as an alternative. Reverse osmosis is a filtration process that removes a wide range of contaminants by forcing water through a semi-permeable membrane.
dirty water vs filtered water

Benefits of Reverse Osmosis Water

There are several compelling benefits to drinking reverse osmosis water, making it a popular choice for individuals seeking cleaner, healthier water.

High Purity

Reverse osmosis systems can remove up to 99% of contaminants, including heavy metals, bacteria, viruses, chlorine, and fluoride, offering an extremely clean and safe water source.

Improved Taste

RO water tends to taste better than tap water due to the removal of chemicals like chlorine and sulfur, which can affect taste and odor.

Consistent Quality

Unlike tap water, which can vary in quality depending on location, RO water consistently offers a high level of purity.
a woman is drinking water

Considerations When Choosing Reverse Osmosis Water

While reverse osmosis water offers many benefits, it is important to acknowledge some factors to consider when deciding whether it’s the right choice for you.

Cost

Installing and maintaining an RO filtration system can be an investment. The initial setup can be expensive, and regular maintenance and filter replacements add ongoing costs. However, many people find the peace of mind and the health benefits worth the investment.

Mineral Removal

While reverse osmosis water offers excellent purification, the filtration process also removes beneficial minerals like calcium and magnesium, which are naturally found in tap water. If you need these minerals, consider supplementing your diet or exploring other purification methods that retain them.
For a complete solution, the Waterdrop X12 Reverse Osmosis System provides fast, high-speed purification with a 1200 GPD flow rate, effectively reducing contaminants such as TDS, chlorine, and lead. It also infuses water with essential minerals like calcium and magnesium, maintaining a healthy pH of 7.5+. With its smart digital faucet, compact tankless design, and eco-friendly 3:1 pure-to-drain ratio, it’s the ideal choice for efficient and healthy hydration at home.

Tap Water vs Reverse Osmosis Water: Key Differences

To determine the most suitable option for various households and lifestyles, it is important to compare tap water and reverse osmosis water based on key factors such as purity, mineral composition, environmental impact, and cost.

Purity and Contaminant Removal

When it comes to purity, there’s a clear difference between tap water and reverse osmosis water.

Tap Water

While tap water is treated to meet safety standards, it may still contain trace contaminants such as chlorine, lead, and pesticides. This is particularly true in areas with older pipes or water systems that have not been fully updated.

Reverse Osmosis Water

RO water is far more purified, as the reverse osmosis process reduces contaminants. This includes chlorine, heavy metals, bacteria, viruses, and fluoride—making it one of the purest options available for drinking water. If you’re concerned about harmful pollutants in your water supply, RO water offers a higher level of assurance.

Taste and Odor

Many people prefer the taste of reverse osmosis water over tap water due to its clean flavor.
a girl thinks water tastes good

Tap Water

The taste of tap water can vary widely depending on the treatment process and the local water source. In areas where chlorine or sulfur is used in the purification process, tap water may have an unpleasant taste or odor.

Reverse Osmosis Water

RO water is typically free of chlorine, sulfur, and other chemicals, leading to a much cleaner and more neutral taste. This makes it a preferred choice for those sensitive to the taste of tap water.

Conclusion: Which Is the Best Choice?

Choosing between tap water and reverse osmosis water ultimately depends on your specific needs and preferences. Tap water is an affordable, convenient, and widely available option that generally provides safe drinking water in most countries. Reverse osmosis offers superior water purification . This makes it an excellent choice for individuals who are concerned about water quality or living in areas where tap water may be contaminated. Comprehensive consideration, RO water is the best water to drink.

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Contaminants Detected in  Fruitland Water Special Service District
30
Contaminants
EXCEED EWG HEALTH GUIDELINES

30  Total Contaminants in Your Water

Water Provider

Fruitland Water Special Service District

Population Affected

120,000

Water Source

Ground water
Exceeds Guidelines

Others Detected

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