Has anyone had success injecting a coag prior to a centrifugal feed pump? I am using Aluminum Chlorohydrate and mixing with the pump and four static mixers and not getting any good results. There is colloidal clay in the water. (50 gpm plant. Mostly just dirty storm water.) Has anyone found a fast acting coag for this problem? It seems I am going to have to add a mix tank, but would prefer to make the static mixers work.