Tap water treatment 

1 - The general-purpose water filter

It is also known as a pre-filter. Its role is to trap the largest impurities in the water: sand, silt, rust, particles and deposits from the mains supply.

Fitted to the main water supply, it protects the pipework, the water heater, the boiler and household appliances. It is often the first step in a well-planned installation.

Depending on the filter holder and cartridge chosen, this filtration process can also be supplemented with specific media such as activated carbon to improve certain aspects of user comfort.

2 - The water purifier

The water purifier is designed to improve the quality of water used for drinking and cooking. It is usually installed under the sink, with either a dedicated tap or a three-way mixer tap, depending on the setup.

Its purpose is different from that of a pre-filter: it provides a more refined level of purification for drinking water, depending on the cartridges and technologies used.

If you’re looking for water that tastes better, is more pleasant to drink on a daily basis, or is better suited for drinking, this is generally the type you should go for.

3 - Limescale treatment

Limescale is a particular problem when it comes to deposits on heating elements, taps, walls and appliances that heat water. In this case, the main priority is not necessarily the purification of drinking water, but rather the protection of the system and user comfort.

It is therefore important to distinguish clearly between scale treatment and the filtration of drinking water. In many cases, these two approaches complement one another.

Depending on your needs, we can recommend either a dedicated limescale prevention system or a more comprehensive solution that includes pre-filtration and purification.

When a household is looking for a water treatment system, the motivation is not always purely technical. It may be due to a bad taste, a smell of chlorine, a desire for everyday convenience, or a wish to reduce the amount of bottled water purchased.

With this in mind, a water purifier or certain specific filter cartridges may be more suitable than a simple pre-filter, as they do not serve the same purpose.

What is the difference between a water filter and a water purifier?

A standard water filter mainly removes the coarsest impurities, thereby protecting the system. A water purifier treats drinking water more thoroughly, usually at the point of use.

Which system should you choose to combat limescale?

If your main concern is limescale build-up on your appliances, you should focus on limescale prevention rather than simply filtering your drinking water. The right choice will depend on the type of system and your actual needs.

Should the whole house be treated, or just the kitchen tap water?

It all depends on the objective. To protect pipes and appliances, the water supply is usually treated. To improve the quality of drinking water, an under-sink or point-of-use system is often the most appropriate solution.

What is the first thing to look for before buying?

The first factor to consider is the problem you want to solve: impurities, drinking water, taste, odour or limescale. This is what determines the right product range.