Interesting. Is the solution reusable, or at least safely disposable? What's the active ingredient? Is there an MSDS sheet available?
I'm saving my first batch in a (cleaned) Roundup container and I'll try to reuse it when I get some more stuff to strip. My plan for disposal is a drop off at our local waste management center. There's no ingredient list on the container or in the catalog. You could contact firstname.lastname@example.org