There is, without a question, not enough solution in the testers. Im sure the solution is right but they cheap you on solution hard. I read this same comment elsewhere but chose to try it anyways. I had to double up the vials in order to make it work properly. Id purchase again if I knew for sure there was enough solution in the vials but I will not purchase in order to find that answer out. I hope this issue is corrected
Reply from Test Kit Plus:
Thank you for the review. It’s important to follow the directions precisely when conducting the test. The quantity of liquid in the ampoule is the exact amount required to conduct the test with a 20 mg sample. Using more (or less) liquid to conduct a test will yield less accurate results.
The Test Kit Plus team