So far so good. After spraying in 50lbs of Alum two weeks ago with a large capacity spray pump (empty's a 55 gallone drum in 15 seconds, to fast), and seeing no results, I decided to use my 35 gallon Tractor Supply special and slowly desolve the alum and then use a fine spray to move around the pond in a jon boat. This worked very well. Two water samples two hours later, one was completly clear and the other was only cloudy. Both samples with heavy clay bottoms.
I believe that I have the most suspended clay in the world that could set a record for suspended clay, ZERO visiblity. This is a newly dug pond less then one year old, 150 ft across by 18 ft deep. Presently have 7 ft (darn drought here in Texas and Ike passed us by).
So, I beleive I have wasted the first 50lbs and hope the 25lbs just sprayed, will be enough.
Plan to spray in 5 50lbs bags of Lime to help the PH out.
Tip, never add water to alum, it turns to a paste and sets up. Always add alum to large amount of water and stir till it desolves.
Hope to add fish next month.