Edition 05/2014 - X-ONE - page 6
SACOME, CONFIDENTIAL Document,
it is forbidden to duplicate or communicate this document without previous authorization.
4.6 WATER SOFTENERS
When the mains water has a high hardness (>10°TH ou >4 °KH), it is recommanded:
o
To use a water treatment
o
To regenarate regularly the filters.
What is the total Hardness of the water ?
o
This is the amount of calcium and magnesium ions in the water.
o
These ions are partly responsible for limestone formation.
o
It is measured with the test strip provided with the machine.
o
The unit of measurement is the ° French (° TH) or the ° German (° dH).
What is the Karbonat Hardness of the water ?
o
This is the amount of Carbonate Calcium ions and Carbonate Magnesium ions in the water.
o
These ions are completely responsible for limestone formation.
o
It is measured with chemical dropper testers.
o
The unit of measurment is ° Carbonate (°KH)
There are 2 types of water treatments:
Salt water softeners
o
They treat the total water hardness (°TH)
o
By an exchange of sodium ions with calcium and magnesium ions.
o
They require periodic regeneration of the resins by the user.
o
To use when the water hardness is > à 10°TH ou > 5 °GH
Resins filters :
o
They treat the Carbonat hardness water (°KH)
o
By fixing carbonate ions on the resins.
o
Often fitted with microfiltration and carbon filtration.
o
To use when the Carbonat Hardness is > à 6°KH
o
Highly recommended by the manufacturer :
The machines are equipped with suitable protection in accordance with flowrate and
the water encountered.
The changing cartridges is carried out by the technical service, at intervals to be
determined
