Reverse Osmosis

This is one of the most efficient methods of water softening. A lot of processes are involved here, but the initial stage involves passing the water through a semipermeable membrane and other larger particles. Some of the particles from the hard water such as calcium and magnesium ions are removed in the osmotic membrane chamber. In this chamber, these ions are separate from the water, and this is possible because the membrane has very tiny holes which can only allow water molecules. This method is not only used for water softening but also for water purification. However, it requires a lot of water and energy to undertake the process which is quite unfortunate. Additionally, more pressure must be exerted on the semi-permeable area so that the hard water is deionized.To deionise means to make the hard water have less salt content. This therefore, means that only pure water will be allowed to pass through the membrane and that means that the water will have been softened.

Advantages of Reverse Osmosis

It is the best method for water softening.

No ion particles can be allowed to enter through the semipermeable membrane.

Simple maintenance. Maintenance can be done when the machine is still operational.

Disadvantages of Reverse Osmosis

A lot of energy is required for the entire process.

There is a lot of pressure that is needed so that deionization can occur.

The water becomes acidity because it has been deionised of all its mineral content. It is not advisable drinking water from the process because naturally, the water must possess some minerals which help in the functioning of the body.


Reverse osmosis is a very effective way of water softening. As a matter of fact, it performs two functions which are; water softening and water purification. It should be adopted in households because it does not allow any particles except the water particles. Regarding cost, it can be managed because its prices are not exorbitant.