I have gotten my hands on some alum from a nursery and am ready to put it in the pond. How do I introduce it? Is it just scattered on the surface or do I mix it with water first? Also, if it needs to be pre-mixed with water is there a certain ratio of alum to water to mix? This is a new pond and there is no fish in it yet and it is creek fed entirely by rainfall runoff. By that I mean the creek or branch is dry a good bit of the year and only flows for several days after a rain. The water coming into the pond is much cleaner than the pond is. I can go upstream and the water is crystal clear. Once it reaches the pond it is murky. I have attempted to get rye grass established on the dam but I'm guessing the murkiness is coming from dirt on the dam slopes where the grass is scarce.
Any help would be appreciated