five NU Aqua reverse osmosis systems on a kitchen countertop

Water is essential for our health and well-being, and having access to clean, pure water is crucial. With increasing concerns about water quality, many individuals are turning to advanced filtration systems to ensure the water they consume is free from contaminants. Reverse osmosis systems have gained popularity as an effective method for purifying water, but like any technology, they come with their own set of advantages and disadvantages. In this blog post, we will explore the pros and cons of reverse osmosis systems to help you determine if it's the right choice for your needs.

Pros of Reverse Osmosis Systems

Reverse osmosis (RO) systems offer several benefits that make them an attractive choice for water filtration.

A. High-Level Filtration

RO systems employ a complex process that effectively removes contaminants such as bacteria, viruses, heavy metals, and chemicals. This thorough filtration process ensures clean, safe drinking water that is free from impurities. Unlike other filtration methods, Reverse Osmosis can effectively filter up to 99.99% of contaminants in water. 

B. Improved Taste and Odor

Reverse osmosis systems significantly enhance the taste and odor of water by removing chlorine, fluoride, and other elements that affect water's flavor. This makes the water more enjoyable to drink, especially for individuals who are sensitive to certain tastes or odors.

C. Convenience and Accessibility

Installing a reverse osmosis system at home provides convenient access to clean, purified water for drinking, cooking, and other household needs. It eliminates the need to rely on store-bought bottled water and offers long-term cost savings compared to purchasing bottled water. Under-sink reverse osmosis systems have a dedicated faucet to have an almost unlimited supply of clean water, on-demand. 

D. Environmental Benefits

By choosing a reverse osmosis system, you contribute to reducing plastic waste by eliminating the need for single-use plastic bottles. RO systems are also environmentally sustainable, with low energy requirements compared to other water treatment methods.

a photo of a woman holding a glass of water with an under the sink Reverse Osmosis behind her

Cons of Reverse Osmosis Systems

While reverse osmosis systems have numerous advantages, it's essential to consider their potential drawbacks.

A. Water Waste

RO systems generate water waste during the filtration process, which can be a concern in regions where water scarcity is an issue. Advanced RO systems with water-saving technology can help mitigate this problem.

a photo of the differences  and advantages of the NU Aqua Tankless reverse osmosis system to a traditional reverse osmosis system

B. Mineral Removal

Reverse osmosis removes beneficial minerals naturally present in water, potentially affecting overall mineral intake. If you rely on water as a significant mineral contributor or prefer mineral-rich water, consider alternative filtration methods or find ways to replenish those minerals through dietary sources. NU Aqua does offer a re-mineralizing reverse osmosis solution that resolves this issue. 

C. Installation and Maintenance

Installing a reverse osmosis system may require professional assistance, and regular maintenance is necessary to ensure optimal performance. Factor in the cost and time involved in installation and maintenance when considering the long-term investment in an RO system.

D. Slow Filtration Rate

RO systems have a relatively slow filtration rate compared to other water treatment options, which can be inconvenient when large quantities of water are needed quickly. Explore alternative options for situations where speed is a priority.


Considering Your Water Quality and Needs

When deciding on a filtration system, consider the following:

A. Water Quality Assessment

Assess your water quality by contacting your local water utility or having your water tested. This will help determine if a reverse osmosis system is necessary or if other filtration methods can address your specific concerns.

B. Addressing Specific Contaminants

If your water contains specific contaminants that are effectively removed by reverse osmosis, it can be a compelling reason to consider an RO system.

C. Personal Preferences

Evaluate your preferences regarding water taste, odor, and convenience. If you value improved taste and the convenience of readily available purified water, reverse osmosis can be a suitable choice.

D. Budget and Long-Term Costs

Consider your budget and the long-term costs associated with installing and maintaining a reverse osmosis system. Compare the potential savings to purchasing bottled water over time.

E. Alternative Filtration Methods

Remember that reverse osmosis is not the only filtration option available. Explore alternative methods based on your water quality and specific concerns.


When considering the pros and cons of reverse osmosis systems, it's clear that they offer exceptional filtration capabilities, improved taste, convenience, and environmental benefits. However, factors such as water wastage, mineral removal, installation and maintenance requirements, and slower filtration rates should be considered. 

Evaluate your water quality, specific needs, budget, and personal preferences to make an informed decision. Whether you choose reverse osmosis or an alternative filtration method, the goal is to ensure access to clean, safe, and great-tasting water for you and your household.

To learn more about the benefits of the reverse osmosis systems and explore options for your specific needs, visit

Leave a comment

All comments are moderated before being published