Just thought I'd update that the brown stuff is still there. I have started using the tablets now. I'm out of DPD power and didn't realize it would be so hard to find, so I'm going to have to order online. I sent my husband to get some at Leslie's and I think it's been on the shelf for 10 years! So I'm kind of at a stand still, I guess. The brown stuff isn't horrible, at least. Oh, and I forgot to have him get skimmer socks, but will when we return the ancient powder.