Rainman, thank you for the quick reply, when you said 150 to 400lbs I assume your talking about the alum and not the lime? The alum I used did dispurse quite readily. Was a little nervous about the PH so I just played around with a bag or two for an experiment. Used gypsum last year about a thousand pounds or so and it worked a little but not much for the effort the alum works a lot better with even the little amount used. If the right amount of alum is used and it works will it keep working or will the clay just get stired up again in another month or two with fish and water circulation?
