| Re: Looking for a Local Source for this product: Mad Mike, those were instructions for making my own! Yuck. I don't want to do that. My back up plan is just stock the whole thing with the real stuff and ignore the pipe work.
Stalwart: pumice is natural, I think this stuff is man made.
But again, this is all pretty mysterious . . no conclusions yet.
And yes, I agree they look like floral blocks. |