The Pond Frog

I am going to speak with my manager and see what I may do about diverting these drains. As far as a filter, I already know that this will not happen. I did some research on the plant Water Hyacinth and I like what I see. How will these plants handle me adding chems: muratic acid, cal-hypo, otter shield dye, etc. or will I need these chems anymore?