A modern solution is formulated from a large number of mineral salts. These are chosen for their purity in the first place because they are calculated to the nearest part per million (ppm) in the solution. It is not possible to formulate accurately with impure or contaminated materials. The second requirement is solubility.
All components of a hydroponics solution must go easily into solution, leaving no residue or precipitation. One of the ways of assessing the quality of a product is to examine the bottom of the tank. Any serious sedimentation after use would possibly suggest the use of cheap and unsuitable materials in the formulation.
All components of a hydroponics solution must go easily into solution, leaving no residue or precipitation. One of the ways of assessing the quality of a product is to examine the bottom of the tank. Any serious sedimentation after use would possibly suggest the use of cheap and unsuitable materials in the formulation.
