What is the difference between a TDS Controller and Mineralizer?

You have seen the functions and the working of the TDS controller. There is a new concept in water purifying technology that uses mineralizers.

Let us see what a mineralizer is and how does it work. This will explain the difference between the TDS controller and the mineralizer.

The mineralizer works on the principles of ionization and electrolysis. This process involves the passing of variable low voltage Direct Current into the ionization chamber to enable the process of electrolysis. 

There is a release of positively charged ions of copper and silver. Copper and silver ions have anti-toxic properties. Silver is a natural toxin for bacteria and copper to algae.

The release of these positively charged ions purifies the water completely without causing any side effects that you would usually observe when you use chlorine for purification. The resultant water has a refreshing smell and taste.

In addition to removing the toxicity, the mineralizer ensures the release of essential minerals lost during the RO purification process. This enables selective infusion of minerals. 

This is not possible in the case of TDS controllers. When you use TDS controllers, you mix purified source water with normal TDS along with RO purified water with a minimum concentration of TDS.

Strictly speaking, you infuse the same minerals that the RO process has eliminated. Of course, you purify the water by passing it through the UV chamber and UF membrane.

Nevertheless, you do not remove the heavy metals like arsenic, lead, or mercury. Theoretically speaking, you contaminate the water purified by the RO process. The Mineralizer differs in the sense that it infuses the lost minerals alone and this certainly does not include the heavy metal impurities like arsenic, lead, or mercury.

This is not to say that the TDS controller is ineffective or anything of that sort. Both TDS controller and the Mineralizer have their importance in the water purification process.

8 thoughts on “What is the difference between a TDS Controller and Mineralizer?”

  1. I am having aquaguard duo since last 8 years. It’s TDs is 32 ph is below seven…Kindly suggest me the best water purifier with ro uv mineralizer having TDs approx 70 and ph 8.5

    • You have to select the water purifier according to the TDS levels in your water source. What is the TDS of the unpurified water? If the value is below 400ppm, there is no need to use an RO water purifier, you can simply install a UV water purifier that removes the bacteria and virus.

  2. I need help here…..I am confused to buy a RO system (brand)….I need suggestion on latest technology RO system in market with very good sales and support….budget is not an issue.

    • Reverse Osmosis is a traditional process that removes the TDS (Dissolved Salts) From the water. Some of the brands offer technologies like Zero water wastage (By sending the discharge water into storage tank) Copper Guard and some models add minerals back to Purifier RO water. The top models are mentioned in this post, please have a look. Kent, AO Smith and Aquaguard are the best selling brands and offer Good Support.


      • Thanks for a super quick response…….how about Eureka Forbes Aquasure Smart…whats your opinion ////also does copper helps in RO..?

        • Aquasure Smart is an excellent UV water purifier but there is not storage tank. If there are power cuts in your place, it is better to go for a model that comes with a Storage tank. Checkout the below ones.

          Kent Ultra UV
          Kent Maxx UV + UF
          AO Smith Z1 UV


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