I have a hard time reading these test kits I feel like im guessing on the color. It also changes depending on how much and what type of light you look at it under. How close do you hold the tube to the white side of the card? like 1"? touching? Do you do the test in just a well lit room or do you hold it under a light to determine the final color?
For anyone that has used api test kits is there another test kit that you have used that you feel like you can make a more accurate reading from? thanks
For anyone that has used api test kits is there another test kit that you have used that you feel like you can make a more accurate reading from? thanks