Outdoorsman, I would refuse to treat your pond with Alum if I were asked...it would be of no use for you...First, I seen NO colloidal clay in your water (merely stained water) and second, the high inflow of water would flush the alum out.

IMO, yes, an alum treatment would be a complete waste of time and money on your part.

Further, any time you treat a BOW with Alum, Add an additional amount of HYDRATED lime seperate of the alum, but at the same time for the safety in preventing a fish kill...the Hydrated Lime cost is tiny compared to the cost and time involved killing off, then replacing a mature fish population.

I will be documenting the clearing of two area ponds in the next couple weeks or so. One will also include removing large amounts of sediment prior to the Alum treatment.