Quote Originally Posted by deranged chipmunk View Post
It's not the active ingredient I would worry about, it's the 30 or so other chemical compounds in it that aren't listed because they aren't required to. Kind of like how all motor oils have oil in them, but it's the other things they put in (detergents, stabilizers and such) that make them different. It may be safe, but i wouldn't want to be the guinea pig. That's all.
but as I said, I'll be contacting them tomorrow to verify, but if this is unsafe, pond liners should also be unsafe according to the data sheet online, but I will be verifying tomorrow when they are open