Frequently asked questions

1. Flush the toilets. 
2. Draw three litres of water from each tap (if possible simultaneously). 
3. Clean your tap filters. 
4. Let the water run from each tap until it is clear. 

Be careful, after a water cut, the pipes may contain a lot of air. Opening a tap can cause so-called “water hammer”. To avoid damage, we recommend that you first carefully open the cold water tap located just after the meter. 

The higher a water’s calcium and magnesium content, the “harder” it is. Conversely, water with a low limestone content is said to be “soft”.  

Aggressive water is soft water with an acidic pH.  

It degrades the pipes, removing the thin protective layer that may have formed over the years on the inside of them. The metal is then exposed and corrosion can occur. If the pipes are made of iron or steel, rust may form. Alteration of lead piping carries health risks. 

We take care to provide non-aggressive water, the composition of which favours the formation of a thin protective layer of limestone in the pipes. 

The most common causes of corrosion in an indoor facility are: 

• the use of poor quality materials; 
• poor thermal balance of domestic hot water recirculation circuits; 
• the use of improperly adjusted water softeners; 
• the presence of deposits or incrustations in the pipes; 
• the presence of air in the pipes; 
• incorrect placement or use of pipes of insufficient diameter (corrosion by erosion); 
• stray electrical currents. 

All these problems can be prevented during installation. For this reason, it is best to call in a professional. 

More information: How to deal with leaks