I used a heavy bleach solution to wash my Hydrotom clay beads, then rinse like crazy and they seem fine. But, I also have only used distilled water in my setups thus far and haven't really had any white residue to deal with. I know if I used my Well water I would as everything in my house gets a white buildup.
I would suggest CLR, but I don't think that would be safe in the long run.
I have heard of people baking their beads or even doing it in the B.B.Q. because they weren't really happy with the smell. Not sure if that would help with your issue either, but might be worth a try with a small mount of them.
|