By forming temporary bonds with the free chlorine, cyanuric acid will reduce the overall effectiveness of chlorine. The amount of time it takes to kill bacteria lengthens as the concentration of cyanuric acid increases.
In the box
CyanuricTest Kit or parts ordered
Cyanuric Test Kit & Parts
Cyanuric Test Kit, Cyanuric Solution 240ml., Cyanuric Solution one Gallon, Cyanuric Test Tube