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To eliminate the worry of using hard water in daily life, users can consider buying or learning about RO water purifier . Modern technology products, using Nano filter membrane and the ability to remove impurities, can be drunk directly, ensuring maximum health for users.

Refer to the hard water treatment methods that can be applied to effectively deal with this annoying problem in the article below:

1. Boiling water – The most economical way to treat hard water

Principle: The process of boiling water will decompose the components that cause hardness in water, which are Magnesium Hydrocarbonate and Calcium Hydrocarbonate, into carbon dioxide gas CO2 and carbonate salt. The gas will evaporate and the carbonate salt will precipitate and settle to the bottom, then they can be separated and soft water can be obtained.

How to treat hard water by boiling

• Step 1: Put water in the kettle or boil it directly on the electric stove/gas stove.
• Step 2: Boil water until it reaches 100 degrees Celsius for about 1 minute, then turn off the stove and let cool.
• Step 3: Decant the clear water on top for use and discard the white residue at the bottom of the kettle.

Advantages and disadvantages of de-hardening water by boiling

2. Using white vinegar to soften hard water – Simple method to soften hard water

Principle: Vinegar is a strong acid (pH of about 2.5) so it can react with the alkaline salts of Ca2+ and Mg2+ (pH >7.0). When vinegar is added to hard water, it will neutralize the residual Calcium and Magnesium content and remove traces of hard water.

How to treat hard water with white vinegar

• Step 1: Soak white vinegar in hard water stains on items and clothes for about 60 minutes.
• Step 2: Clean again with regular detergent and clean water.

Advantages and disadvantages of hard water treatment with vinegar

3. Use de-hardening chemicals

Principle: Chemicals such as soda, lime powder, barium hydroxide, sodium phosphate, etc. can react with Calcium. and Magnesium in hard water form a precipitate. Then, we can separate this insoluble compound to get water to use as usual.

Depending on the type of chemical and the characteristics of the water source, we need to consider how to use it effectively and safely. Specifically:

Method 1: Use lime to treat temporary hard water:

• Add lime Ca(OH)2 to hard water to let it react with Magnesium and Calcium in the water to form precipitates of Mg(OH)2 and CaCO3.
• Wait a few hours until the undissolved precipitate settles to the bottom, then decant the clear water on top.

Method 2: Use baking soda to soften temporary and permanent hard water

• Dissolve baking soda NaHCO3 in hard water and wait for the anions (CO3)- to react with Ca2+ and Mg2+ to form a precipitate.
• Wait a few hours for the precipitate to settle to the bottom, the water inside becomes clear, then decant it for use.

Method 3: Use Barium Hydroxide to soften hard water

• Add Barium Hydroxide Ba(OH)2 to hard water to react with Calcium and Magnesium salts to form 3 precipitates Mg(OH)2, Ca(OH)2 and BaSO4.
• Wait for these precipitates to settle to the bottom, then collect the clear water on top for use, and discard the residue.

Advantages and disadvantages

4. Treat hard water with ActivFlo device

Principle: The ActivFlo device uses a specialized alloy surface that is capable of reacting and changing the chemical structure of calcium bicarbonate (Ca(HCO3)2) - the main cause of hard water caused by limestone. When water passes through the device, it comes into contact with the charge on the alloy surface under reduced pressure conditions, causing calcium bicarbonate to form insoluble Aragonite crystals, which have no binding properties and flow out through the drain instead of sticking to form scale.

How to treat hard water with ActivFlo technology

• Step 1: Prepare the equipment, determine a suitable installation location (usually near the main water supply pipe) and install according to the instructions.
• Step 2: Connect the water supply line and drain line to the ActivFlo device.
• Step 3: Connect the power source and set up the device according to the modes suitable for your needs such as: water softening mode, cycle time, etc.
• Step 4: Open the water tap into the system for treatment, the resulting water will be soft water.

Advantages and disadvantages of ActivFlo technology

5. Use a total filtration system - Effective hard water treatment equipment

Principle: The total filtration system specializes in treating hard water, including a filter column containing Na+ and K+ cation resin beads capable of performing an exchange reaction with Ca2+ and Mg2+. Thereby, it helps to quickly remove hardness, providing safe soft water for use and daily life.

How to remove hardness with a total filtration system

• Step 1: Choose a location and install the total filter according to the correct technique.
• Step 2: Connect the water supply pipe and the filtered water pipe to the device.
• Step 3: Lead water into the system, we will get soft water at the output.

Advantages and disadvantages of using a total filtration system to treat hard water

Currently, there are many units on the market that provide specialized equipment for softening water, of which the most prominent is Mutosi's limestone-contaminated water treatment system. The product is equipped with a filter column containing specialized cation resin beads that can exchange Mg2+ and Ca2+ ions quickly and effectively, providing soft water that meets living conditions. In addition, users should combine it with Mutosi RO water purifier to be provided with clean, safe water that meets direct drinking standards QCVN 6-1:2010/BYT.

Readers can refer to detailed product information at: Mutosi water treatment system

6. Using RO water purifier - Safe way to soften hard water

Principle: RO membrane is designed with modern technology that can effectively handle many impurities, chemicals, dissolved mineral salts, etc. This feature allows water purifiers equipped with RO membrane to handle many types of water with different properties, including hard water.

How to soften hard water with RO water purifier

• Step 1: Choose a suitable location and install a water purifier equipped with RO membrane.
• Step 2: Connect the water source and plug in the power to the filter.
• Step 3: Start the machine, water is led through the filter system and comes out as soft, safe water, ready for immediate use.

Advantages and disadvantages of using RO filter to soften hard water

The hardness removal efficiency of the filter depends on the technology used by the RO membrane, in which the exclusive slitec technology for the RO membrane used in Mutosi filters is currently the most highly appreciated. With a super small filter hole design of only 0.0001 micron along with smart filtering features, Mutosi RO water purifier can optimally handle up to 99.99% of bacteria, impurities and dissolved salts and minerals. From there, it helps to quickly remove hardness, providing safe drinking water, helping to protect and improve the healthy living standards of Japan for everyone.

For more detailed information about the product, readers can refer to: Mutosi RO water purifier

7. Method of softening temporary hard water by ion exchange

Principle: Letting hard water come into contact with a special material that can absorb Ca2+ and Mg2+ ions will create an exchange reaction. When water is led into columns containing this material, they will collect Ca2+ and Mg2+ ions and release Na+ to make the water soft.

How to perform ion exchange method to remove hardness from water

• Step 1: Install a device containing special ion exchange materials at the water source.
• Step 2: Lead water into the filter to carry out the exchange process between Na+ ions and the ions of salts that create hardness for water, which are MG2+ and Ca2+. The water coming out of the filter will be softened water.

Advantages and disadvantages of ion exchange method

Each method of hard water treatment mentioned in the article has its own advantages and disadvantages and is suitable for each specific case. Readers can refer to and rely on those analyses to consider the most optimal solution according to the requirements of themselves and their families. In case you need further advice or to buy a hot and cold water purifier , please contact Mutos directly via hotline: 1900 636 595.