the instructions say:
hold the GH liquid reagent bottle upside down and add a drop at a time to the test vial.
gently shake the vial after each drop and count the number of drops necessary to change the color from red to green
the number of drops added until the color changes represents the level of hardness.
so my question is do i count the total drops i added or just the drops i added from the time the water turns red to green?
hold the GH liquid reagent bottle upside down and add a drop at a time to the test vial.
gently shake the vial after each drop and count the number of drops necessary to change the color from red to green
the number of drops added until the color changes represents the level of hardness.
so my question is do i count the total drops i added or just the drops i added from the time the water turns red to green?