There is a lot of debate these days about the best type of water to drink. Some people swear by reverse osmosis water, while others say alkaline water is the way to go. So, which is the better option?

Let’s take a closer look at both types of water and the pros and cons. Reverse osmosis water goes through a filtration process that removes impurities and contaminants. This leaves you with clean, pure water that tastes great.

The downside to reverse osmosis water is that it can be expensive and doesn’t have any minerals or electrolytes. However, alkaline water has a higher pH level than regular tap water. This means it can help neutralize the acid in your body and balance your pH levels.

Alkaline water also contains minerals and electrolytes that are beneficial for your health. However, reverse osmosis and alkaline water have different benefits depending on your needs. For example, alkaline water can help to neutralize the acid in your body, while reverse osmosis water can remove impurities from your water supply. If you’re unsure which type of water is best for you, consult a doctor or nutritionist.

What is Reverse Osmosis Water 

Reverse osmosis water is considered the safest water to drink. In the Reverse Osmosis system, water is purified in several stages, including the mother organ of its RO membrane. RO systems have semi-permeable membranes with a 0.0001-micron thickness. The membrane prevents unhealthy and harmful substances from passing through into the water. 

Water is wholly purified with Reverse Osmosis without generating any heat. As a result of this filtering process, the water does not contain any harmful elements. The efficiency of the Reverse Osmosis system is that it can prevent 95% to 99% of Total Dissolved Solid (TDS) from water.  

In brief, after passing through the water into the RO membrane is considered RO water. But it is possible to add additional stages to the RO system to get a better result. 

What is Alkaline Water?

The pH level in water indicates that it is acidic or alkaline. The scale of pH is 0 to 14. That means the lower the pH indicates the water is acidic, the higher the pH indicates the water is alkaline. 

Typical drinking water has a pH level of 6.5 to 7.5. That means the water is in a neutral range of acidity and alkalinity. Something with a pH of 0, 1, or 2 would be very acidic, and something with a pH of 12, 13, or 14 would be very alkaline. The available alkaline water in the market has a pH of 8 or 9. 

Quick Comparision Reverse Osmosis Water vs Alkaline Water 

Topic Alkaline Water RO Water
Type of Water Filter Ionizer RO System
Pore Size of Filter 0.01 Micron 0.0001 Micron
Contamination Removal Rate 85% to 90% 97% to 99%
Require Electricity to run Yes Yes
Level of pH 8 Plus 6.5 to 7.5
Price Range Start from $150 Start from $200
Yearly Maintenance Cost $150 to $200 $120 to $180
Water Waste Low High
User Low High

What is Better, Alkaline Water Or Reverse Osmosis?

There are a few things to consider when choosing between alkaline water and reverse osmosis water. The first is the intended use. Alkaline water is better for drinking, while reverse osmosis water is better for drinking and cooking. 

The second thing to consider is the source of the water. Again, reverse osmosis may be your best option if you do not have access to a good quality water source.

The third thing to consider is cost. Alkaline water costs more than reverse osmosis water. In any case, it is imperative to remember that quality comes with a price. 

Alkaline water is of higher quality and will provide more health benefits than reverse osmosis water. But, if you consider water contamination, there is no alternative to the RO system. 

In conclusion, there are pros and cons to both alkaline water and reverse osmosis water. Choosing the right type of water is essential based on your needs and preferences.

Difference between Reverse Osmosis Water & Alkaline Water 

Filtration Method

A RO filtration system is required to produce RO water. On the other hand, a water Ionizer machine is required to produce alkaline water. However, it is possible to produce alkaline water at home without using any ionizer machine. But, we can not produce RO water without using any RO system. 

If we produce alkaline water at home without using a water Ionizer machine, we do not need any electricity. Instead, we need to use baking soda, lemon juice, and pH drops. 

Water Quality Analysis 

RO water is undoubtedly the safest water compared to other filtration methods. For example, a reverse Osmosis system removes up to 99% of contamination from water. On the other hand, a water Ionizer removes at most 90% of contamination from water. 

The water Ionizer requires a pre-filter which is called microfiltration. The pore size of microfiltration is 0.01 micron, and the RO system’s pore size of the membrane is 0.0001 micron. But the fact is the RO system removes some essential minerals from water. But water Ionizer does not remove minerals from water. 

Waste Water 

Reverse osmosis filtration wastes a lot of water. However, the RO system can ensure safe water at 3:1. This means by producing 1 liter of safe water RO system waste 3 liters of water. On the other hand, the Ionizer machine does not waste water to produce alkaline water. 

Acidic vs. Alkaline

Reverse osmosis (RO) water is a little more acidic than alkaline. The typical range of pH in water is 6.5 to 8.5. In comparison, RO water has a pH level of 6.5 to 7.5, which means the water is a little acidic. On the other hand, a water ionizer makes the water alkaline. 

Does Reverse Osmosis Give You Alkaline Water?

The answer is no unless you ad an alkaline filter to your RO system or use RO water in a water ionizer machine. 

Generally, reverse osmosis does not change the pH of water. However, it can remove acidic contaminants that lower the pH of water. This can make the water taste more alkaline. Some reverse osmosis systems include an alkalizing filter that adds minerals to the water and raises the pH. 

How to Make Reverse Osmosis Water Alkaline? 

Yes, adding a mineral and alkaline filter in a RO system is possible. Some RO system has default mineral and alkaline filter as well. 

Another option is to use an inline filter that contains an ion exchange resin. This type of filter will remove some of the acidity from the water and make it more alkaline. Finally, you can install a reverse osmosis system with a built-in alkalinity booster.

Is Reverse Osmosis Water Bad for Kidneys? 

Reverse osmosis (RO) water is not bad for your kidneys. On the contrary, it may even be beneficial! This is because the RO water system removes impurities and contaminants

Our kidney’s primary purpose is to filter the water in our body. But, in RO, water filtered by 0.0001 microns, is exactly what the kidney does! So, there is not much work to be done by the kidney! This process benefits your kidneys by removing harmful toxins and providing clean, great-tasting water.

Reverse Osmosis Alkaline Water Benefits

As we discussed earlier, we can turn RO water into alkaline water by adding an alkaline filter. There are many benefits to drinking alkaline water, including improved hydration, detoxification, and balancing of pH levels.

Alkaline water has a higher pH level than regular tap water. This means that it is less acidic and can better neutralize stomach acid. As a result, drinking alkaline water can help improve digestion and prevent digestive issues like heartburn and acid reflux.

In addition to improving digestion, drinking alkaline water can also help detoxify the body. It does this by helping to remove toxins and waste products from cells. This can lead to improved overall health and well-being.

Finally, drinking alkaline water can help balance pH levels in the body. This is important because when pH levels are unbalanced, it can lead to health problems. Drinking alkaline water can help keep the body’s pH levels balanced, which may contribute to good overall health.

Zero Tds Vs. Alkaline Water

There are a few critical differences between zero TDS water and alkaline water. First, alkaline water has a higher pH level than regular tap water. This means that it is less acidic and can help to neutralize stomach acid.

Additionally, alkaline water contains minerals like calcium and magnesium, which can benefit your health. Zero TDS water, on the other hand, has no dissolved minerals or salts. While this might seem healthier, no scientific evidence supports this claim.

Zero TDS water can leach minerals from your body if you drink it over an extended period. So if you’re looking for the healthiest option, stick with alkaline water!


If you’re looking for clean, pure drinking water, reverse osmosis water is a good choice. However, alkaline water may be a better option to improve your overall health. But if you use reverse osmosis water, adding an alkaline filter will be your best option.