The essential helper for clean water

A chlorine and pH drop test kit is crucial for the correct setting of values in your pool. Its ease of use and quick results make it a handy helper for daily checks.

Accuracy and simplicity

With the tester, you can quickly find out the current water status and, according to the results, you can immediately proceed to adjust the values with pool chemistry. Thanks to the blue and green scales, you can easily determine the necessary adjustments.

DUKE Drop Tester (Cl/Ph) - chlorine + pH

The tester is used to test free (active) chlorine and the pH value of the pool water. In order to keep your pool water crystal clear, you can't do without a quality tester. Always measure the pool water values first. If the test results are not within the normal range (ph 6.9-7.4 ; Cl 0.3 - 0.7), then treat the pool water with pool chemicals. Always first adjust the pH value to the desired value using pH+ or pH-. Only then adjust the chlorine value ( only increase the chlorine value, if the chlorine value is too high, do not decrease it, it will decrease in a few days). Chlorine is applied only after pH adjustment, because the effectiveness of chlorine outside the recommended Ph values decreases rapidly.It is possible to buy replacement test drops for pH and chlorine test.


Recommended values: Cl - 0.5 mg/l, pH 6.9 -7.4.
Note: Water should be drawn 30 cm from the edge of the pool and 30 cm below the surface.
Chlorine test will determine if there is enough chlorine in the pool to kill bacteria and algae. The Ph test determines the pH of the water (acidity, alkalinity).
Important: Conduct the tests in the shade and early morning or late evening before adding chemicals. Store the tester in a dark, cool place. Keep the test chambers clean and dry.