Thank you, Mike. I searched the GypsumUS website to find where we could buy some gypsum. I noticed on one thread that someone bought it at Home Depot. Is it as easy as that? We don't really know where to start looking other than just picking up the phone and calling.

I believe by other posts I've done, we would need about 100 lb. gypsum. Now I just have to find a source. If anyone knows somewhere in the Denton, Tx area, I would really appreciate it.

I really, really appreciate your help. I have enjoyed the pond so much and I don't want to let anything get out of hand in properly careing for it.

janan