Did you get the blue color when you tested the kH? You have to see blue, and then the next drop to change it to yellow is the # of drops I think. I did it once and I missed the blue stage and kept adding drops up to at least 20 and nothing happened. Do it carefully, and cap the tube each time and see if you don't get blue after the first or second time.
Remember, it's the next drop after blue that gives the # of drops.
wow last time i talked to my frind her ph was at 8.7 i took some water of my tab water made the ph 6.5 all 3 botals and put aqua plus in and her ph came donw to 7.6 so her water isnt that hard either no more.:):):)