Water alkalinity detection system

A water alkalinity detection system comprising:

• an installing box (100) having a reference sink (1), a test sink (2) and a temporary sink (3);
• the reference sink (1) having a reference liquid (6) which has a predetermined KH (alkalinity) value;
• a pH value detecting probe (5) positioned in the test sink (2) and serving to test a liquid inputted into the test sink (2) for detecting a pH value of the liquid in the test sink (2);
• three liquid pumping devices (4) which are a reference pumping device (10), a transferring pumping device (20) and a temporary pumping device (30), respectively;
• the reference pumping device (10) being connected to the reference sink (1) and the test sink (2);
• the transferring pumping device (20) being connected to the test sink (2) and the temporary sink (3);
• the temporary pumping device (30) being connected to the temporary sink (3) and serving to be connected to an external sink (200) which has an external liquid (7) to be tested;
• the reference pumping device (10) serving to pump the reference liquid (6) of the reference sink (1) into the test sink (2);
• the temporary pumping device (30) serving to pump the external liquid (7) of the external sink (200) into the temporary sink (3);
• the transferring pumping device (20) serving to pump the external liquid (7) inputted to the temporary sink (3) into the test sink (2);
• an air pumping device (50) connected to the test sink (2) and the temporary sink (3);
• the air pumping device (50) serving to pump air into the test sink (2) and the temporary sink (3) simultaneously;
• a control device (60) connected to the liquid pumping devices (4) and the pH value detecting probe (5);
• wherein in detecting, the control device (60) serves to control the air pumping device (50) to pump the air into the reference liquid (6) inputted to the test sink (2) and the external liquid (7) inputted to the temporary sink (3) simultaneously for a predetermined period of time to form a processed reference liquid (6′) in the test sink (2) and a processed external liquid (7′) in the temporary sink (3);
• the pH value detecting probe (5) is controlled by the control device (60) to detect a reference pH value of the processed reference liquid (6′);
• the control device (60) serves to control the reference pumping device (10) to pump the processed reference liquid (6′) tested by the pH value detecting probe (5) from the test sink (2) back into the reference sink (1) to empty the test sink (2), and to control the transferring pumping device (20) to pump the processed external liquid (7′) from the temporary sink (3) into the test sink (2) emptied by the reference pumping device (10);
• the pH value detecting probe (5) is controlled by the control device (60) to detect an external pH value of the processed external liquid (7′) inputted into the test sink (2);
• and
• the control device (60) including a processor (65);
• the processor (65) serving to receive the reference pH value and the external pH value detected by the pH value detecting probe (5) and to calculate an external KH value of the processed external liquid (7′) according to the KH value of the reference liquid (6), the reference pH value and the external pH value.