Review on 🧪 Kh/Alk Test Kit for Carbonate Hardness and Alkalinity by Nikki Cooper

Seems to be a great test kit. Color changes are very easy to see. The problem is that the 1mm syringe becomes unreadable after a single use and cleaning. I cleaned it carefully after the first use, and when I tried it the second time I used it, I noticed that all the numbers in the top half of the scale were gone. So the injection is no longer good. The set is new, used once and now in the trash. The numbers came off WAY too easy.