Mr. Holt,
Thank you very much. We added 6tons to our pond late last year. It is much clearer now, not sure if it is the gypsum or the winter we had. He pond has been very green all winter but we can see down about 14 inches now. For some reason we have really fertile water since we built he pond late year. Thanks again. Zach
I think I need to add some more to add some hardness too.
