jauringer
Premium Member
just bought a phosphate test kit. The instructions are just pictures. I think I am doing it right, but the color change sure is light. basically this is what I am doing.
5 ml of water
5 drops PO4-1 and shake
1 spoon PO4-2 and shake
wait 2 minutes
place the vile ON the white background and look down through the liquid.
5 ml of water
5 drops PO4-1 and shake
1 spoon PO4-2 and shake
wait 2 minutes
place the vile ON the white background and look down through the liquid.