Firstly, cleaned with dilute HCl in half and then rinsed with distilled water and raw water Fourchi. The
next step is to introduce 1liter of the raw water Fourchi and 1 liter of treated water of Fourchi in each
beaker. It brings the water temperature at (20 ° C, 30 ° C) in a water bath. Emphasis on each stainless
steel beaker with a magnetic bar and a lid is placed on a magnetic stirrer after setting the temperature (20
° C, 30 ° C).
We measure the initial pH and maintaining the beakers with stirring at 600 rpm for an hour or three hours,
depending on the inhibitor used. We measure the initial pH and maintaining the Beakers with stirring at
600 rpm for an Hour or Three Hours, depending on the inhibitor used. The procedure for chemical
analysis (hardness, Ca2+, HCO3
-) of raw and treated water.