You might find useful information at
I will also forward your question to the bubble expert to see if he has
any specific suggestions.
> I have had trouble getting hoola hoop bubbles to be stable so that I can
> lift the hoola hoop to the height of a small child. I have seen this
> done at carnivals. any suggestions? I assume it has something to do
> with water quality. I have used bottled water even but I can't seem to
> get the film to last. I have also played with the proportions of
> glycerine and soap with no luck.
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