10 Common Myths About RO Water Purifiers – Busted!

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The most effective and reliable way to have healthy water is to buy a water purifier. But most of us often hesitate because of the price and for some common RO water purifier myths that have been conceptualized as truth.

But today, we will bust all the most common myths regarding water purifiers. We will analyze the misconceptions and prove them wrong. 

water purifier myths

Myth-1: Water purifiers are expensive and need high maintenance.

This is a sheer delusion that the water purifiers are expensive. If we see it through a one-way view, then yes, they are costly. 

But if you calculate how many years the water purifier will serve you, you will realize that it is not a wastage of your money but a one-time investment.

Now let us come to the maintenance part. If you are talking about the old versions of water purifiers, then your concern is right. They used to charge a high maintenance cost.

But for the new purifiers, you would need maintenance every 6-12 months, which will cost you low charges. And if the purifier comes from a reliable supplier then the maintenance cost may reduce. 

There are purifiers that come with 50 paise per liter maintenance charge. Now you decide, will you consume harmful chemicals with your water or invest in a cleaner and lead a healthy lifestyle.

Myth-2: Boiling water is safer than RO purified water

Boiling water has been one of the most traditional ways of purifying water. It is useful also but not 100%.


If you boil the water, it can remove the bacteria and germs altogether. But what about the harmful minerals?

The water that you consume may consist of chemicals like lead, mercury, arsenic, fluoride, and so on. Only boiling cannot remove these adulterations dissolved in your water.

Therefore consuming boiled water is not entirely safe.

Myth-3: RO purifiers eradicate healthy minerals from water. 

There is a reason behind this myth. The myth has risen from the purification process of the RO water purifiers. 

The RO water purifiers use a semipermeable membrane that allows passing through the elements with a molecular weight of less than 20. 


As water has a molecular weight of 18, therefore it passes through quickly. But the heavy minerals like lead, mercury, arsenic, fluoride cannot pass through and get trapped.

But along with the harmful minerals, some healthy minerals like calcium and magnesium also tangles with the semipermeable membrane.

Therefore the assumption that RO purifiers eliminate the healthy minerals is not entirely wrong. But with the new purifiers, you do not have to worry about such things. 

The reason is that the new cleaners come with a TDS controller or mineralizer. This helps the water retain the valuable minerals that are good for your health.

Therefore, before buying a RO water purifier, remember that you are wasting your money on your good health.

Myth-4: RO water is not healthy.

This is not true, as the new RO purifiers come with a TDS controller or mineralizers.

They must retain the valuable minerals that you need in healthy water. They maintain the exact TDS level that is suitable for your health.

To know more about the TDS level in the water, read the TDS level in the drinking water article. 

Myth-5: RO water has a low pH level, and it is acidic as well.

If your drinking water lacks a certain amount of TDS level, it may lack the exact pH level. And for this reason, the myth has been popularized that RO water has a low pH level as the RO eliminates TDS minerals from water.

However, this is not true, as the TDS controller and mineralizers are the new relievers.

But it is true that when the pH level gets down, the purifier gives acidic water. It may become seven or even less than seven. 

But that does not mean it will harm you. Because in our daily life we readily consume acids through food and milk anyhow.

Therefore, there is no such reason to panic.

Myth-6: RO purifiers cause a lot of water wastage.

If the TDS level in your water is high, then there will be some water wastage because the TDS gets eliminated through the source of water.

Therefore it is true that the RO purifiers can cause water wastage. But we can not call it a sheer wastage.

The reason is that the water can be used for other purposes like watering plants, washing utensils, etc. Therefore, where there is a will, there is the way.

Myth-7: Activated carbon filters purify the water more intensely.

If we talk about the capacity of the activated carbon filters, then we will say that they can exclude the minerals like chlorine or fluorine. But the RO purifiers do not have that capacity. 


However, if we talk about reducing TDS minerals, then nothing can beat the duty of an RO. Therefore, you cannot compare these filtration processes with each other.

We can say that both the filters complement each other. And for this reason, the RO purifiers come with the activated carbon filters.

However, the carbon filters cannot ever take the place of the RO filters. The RO purifiers are always the best option.

Myth-8: RO purifying is a slow process.

Yes, the RO purifying process is indeed a bit slow. The reason is that it eliminates all the harmful TDS and gives you drinkable water. 

However, you do not have to wait to drink a glass of water every time, as most of the RO purifiers come with a storage tank.

An average rated RO purifier can provide you up to 60 liters of drinkable water every day. Therefore, leave such myths out of your mind. 

Myth-9: Water softener is enough for purifying water.

If you have already confirmed that the water you drink has no impurities and TDS, then the softener is a perfect option to soften the hard water. A softener will only make the water soft. 

Nothing more than that. Therefore, do not expect it to work like a purifier.

It will never eliminate the TDS minerals or other harmful contaminants. Therefore, never compare the softener with an RO.

Myth-10: Bottled water is cheaper than the RO purifier.

As we have already said that investing in an RO is a one-time investment that will give you long-term benefits.


If you compare the expenses that you will be spending on bottled water and the cost of an RO for ten years, the result will be on behalf of the RO purifier.

Therefore, do not compare any other supplementary options with the commitment of an RO.

Benefits of having an RO Water Purifier

water falling from tap

We identified all the misconceptions regarding the RO purification process and broke them all with proper reasons. Now we will discuss the benefits that you can avail yourself of from RO purifiers.

  • We have repeatedly said that RO purifiers are long term investments. The reason is that they can serve you for 10-15 years and even more with proper maintenance.
  • The best way to maintain the exact TDS level in your drinking water is to make it pass through the RO purification.
  • With the six to the seven-step purification process, you get the purest and palatable water with the RO purifiers.


In conclusion, we can say that you don’t have to think twice about the quality of the purified water produced by RO purifiers.

Make sure you get yourself the best water purifier from a reputed brand.

You can also check our article on the best water purifier in India to know more about water purifiers.


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