OK, so my post has gone unanswered, but I won't be deterred. I'll take this lull as an opportunity to add some pertinent information. Here is a photo of the same jar of water to which I added about 1/4 teaspoon of alum (from the spice section of the grocery store). I stirred it in and allowed it to settle for 20 hours.

The before and after photos are dramatic. Now that I know alum does the trick, does this mean I have to use it to clear our new pond? Will the eventual growth of weeds, or some other natural process clear the pond too? Again, any help is most appreciated.


Last edited by MrSandman; 11/29/12 09:43 PM.