white95max- Hey, good to see you posting

Hope all is well with you.
I'm not all that surprised that the "biodegradable APC" wasn't so biodegradable after all..but wow, it actually *killed* the plants in high concentration huh? Sheesh, and people here get bent about Dawn (which my wife uses as an anti-bug spray on plants with no problems at all). I do wonder if regular shampoos might not be a whole lot better in that regard, but I bet those aren't all the same either.
But anyhoo..I do sometimes forget that people here are doing this stuff in their driveways/etc. I've been doing it in purpose-configured shops for so long that I've come to think of that as normal
And hey#2, that's an interesting field you're in!