Frequently asked questions

The natural composition of metal-laden water can, in rare cases, give it a brown or red colour. The metal content of the water can also be influenced by travelling through the pipes when the flow rate is increased, for example.   

This water is not harmful to your health, but, if you notice that the phenomenon is frequent and that the water is also coloured at the tap just after your meter, contact us.  

What can be done to get rid of this colouring? 

Let the water run for a few moments. 

After a long absence, drain the water that has been left to stagnate in the indoor pipes. 

If you notice any stains on your clothes, wash the dirty clothes again immediately.  

More information:

The water in your municipality

Water analysis

The milky appearance is due to the appearance of fine air bubbles in the water and not to limescale. The play of light on the water gives it that characteristic milky appearance. 

Within a minute, the air bubbles rise to the surface and disappear. The water then becomes perfectly clear again. This phenomenon has no effect on water quality. 

More information:

The water in your municipality 

Generally speaking, tap water of underground origin naturally contains limescale. When water filters down, it passes through several types of soil with different geological characteristics. It then becomes loaded with minerals and trace elements, including calcium carbonate. 

The limescale dissolved in the water is not bad for your health. On the contrary, it provides the calcium essential for growth and necessary to prevent decalcification. 

More information: Installing a water softener

Effective disinfection of tap water is absolutely necessary to prevent the recurrence of potentially fatal infectious diseases. Chlorine is injected into the water at very low levels (safe for your health) to prevent it being contaminated by pathogenic viruses or bacteria between the production site and your tap. 

A litre of tap water can contain a maximum of a quarter of a milligram of chlorine. 

As chlorine evaporates in the open air (and not in the pipes), its taste disappears very quickly if the water is left to stand in an open jug.

First of all, it is important to identify the origin of this "musty" or mouldy taste. It can come from the public supply network or from the pipes inside the house. To find out, draw water immediately after the meter at the stopcock. If this bad taste is present at the meter, contact us. 

If the water does not have a taste or odour problem at the point where it comes into the building, the problem is in the internal installation. In this case, a purging of the internal pipes should help return it to a normal situation.