Hagen Calcium Test

[Chad]

Anyone out there use the Hagen Calcium Tester? I tried it last night (first time) and I could have added those Bottle 3 drops forever without it turning purple. I am pretty positive my calcium level is not THAT high . Just wondering if I am doing something wrong. The first drop makes it a darker pink than the pink they show. I didn't want to waste the entire reagent 3 bottle just to see if it would ever turn purple. Any clues

FYI I ended up putting 20 drops in before giving up

Chad