I have a newly reclaimed (dugout) pond that is 18 months old and stocked. When it first filled it cleared up but after the second rain it has been stained and never cleared. The water below in the creek is clear, the water trapped next to the pond is clear too. I haven't done any water tests other than using a glass jar and eventually the clay will settle out.

This past weekend I put 2-2.5 tons of gypsum boulders scattered around the edge of the one acre pond. I had friends that had used this technique to provide continuous release over the next 3-2 years. I bought 3.5 tons for $15 bucks so I have some left over for later use. My question is do I need to do anything else and what is lime used for and has anyone else used this technique?