how to test my KH

[kmc150]

i bought a api kh test kit but i dont understand how it works there is no chart that came with it

 

[zukiGS500]

Read the instructions that came with it. Its something about how many drops it takes to turn the water from one color to another.

 

[Spiritofthesoul]

KH

Fill bottle to line. (5ml)
* Add one drop of solution, put cap on, invert several times.
Repeat * until color changes from blue to yellow.
Number of drops used = approximate degrees. Multiply by 17.9 if you want ppm instead of degrees.