Pond Boss Forums GENERAL QUESTIONS Muddy water Alum question

Powdered or granular limes, alum, fertilizers and chemicals will dissolve and disperse by dissolution and diffusion, BUT if you are applying a chemcial that requires good distribution and it works FAIRLY RAPIDLY due to a fairly even coverage or uniform concentration then if makes good sense to evenly spread, spray or manually distribute the chemical in an evenly as possible manner over the entire treatment area. For example, in my opinion chemicals such as contact killers (copper sulfate), rapidly absorbed chemicals such as diquat or settling agents such as alum these should be evenly dispersed over the treatment area. Label directions will almost always specify that they be applied in a uniform manner.

Clump distributions via diffusion can be acceptable for very slow working chemcials such as some fertilizers and dyes.