No one is saying to buy Salifer, if that is going to change your mind about salifer then change kits. although i cannot guarantee that they'll be 100% accurate or as accurate.. if you got a bad dropper then all you have to do is brake off the tip and draw two drops with a 1mil sirynge and "presto". Also you can re-check with the same lame test kit. here's how: you do the High resolution testing first, and then you recheck with a Low testing resolution..wha-lla..
Now that dropper still useble, all you have to do is shake the Kh-ind dropping bottle, then open the bottle, then tip it upside down, then slowly start squeezing, now sometimes you may get an air bubble coming out of the bottle when dropping.. this air bubble doesn't count as a Drop.
It's not the Chemist's fault its the people that are working for him..
the chemist already did his part on coming out with a accurate test kit like salifer..this test has been proven and tryed for years in labs.. now if some new employees (batch makers,dropper makers) are making mistakes that's a different story..