Salifert alkalinity test

[BigD9.5]

The air gap in the syringe varies sometimes its smaller sometimes its bigger.when the color changes do you read the bottom of the cylinder or where the air gap starts?

 

[MCatano]

The air gap in the syringe varies sometimes its smaller sometimes its bigger.when the color changes do you read the bottom of the cylinder or where the air gap starts?

 

[BigD9.5]

Thats a good find video keep up the good work lol