The analysis is either too long or does not finish at all
An analysis should take around 5 minutes long, if it takes too long, there may be a problem.
Water over the 60ml mark in the beaker.
The beaker is filled with aquarium water more than it should be
Stirring magnet does not spin or spin loosely
If the reagent is not mixing well, the KH result will be too high or will not finish.
