The instructions for each test say to add one drop of reagent at a time, to cap the tube and invert several times after each drop.

KH is supposed to change from blue to yellow while the GH is supposed to turn from orange to green.

It took six drops for the GH to go from orange to green (very pale, but a change).

I have added 10 drops of the KH reagent and have yet to see a hint of blue. The water turned yellow with the first drop of reagent and has just gotten a darker shade with each subsequent drop.

I have googled GL and the general web and I'll be darned if I understand anything I'm reading.

Looking at the conversion chart in the instructions has not helped either. If I go down the chart to 6 drops it gives me a degree d KH of 6 and a ppm KH/GH of 107.4

However, if I go down the chart to 10 drops it reads a degree dKH of 10 and ppm KH/GH of 179.
Remember this has never been blue and turned yellow with the first drop.

Could someone explain this in terms a 10-year-old could understand? (Remember, I literally got through high school chemistry because I think the teacher took pity on me.)