Bugermeister, thanks for your response. I have purchased the Hy Lime from a local feed store today but as for the Alum all I could find is crystal from a pool supply. I quess I should not be trying to do this on Sunday and surely not try to buy Alum from city feed and seed stores. I will contact a feed and seed in the country (outside the city) on monday as I am all nut sure they have a better understanding of what I am attempting to do.

I know from my readings here and on other websites that the Hy Lime will stop the drop in ph from the Alum, but what will raise it to the desirable 7.5 to 9.5 needed for a healthy pond?

In the event I can't find Alum in a powdered form will the crystals dissolve enough to be sprayed?

hd82

Sometimes ponds are like women, a small one takes less to manage and more time for pleasure