"Jean-David Beyer" wrote

I thought they said that about boric acid

They sell the 'wrong sort' of Boric Acid as roach powder.
I found it will dissolve in boiling water. In cold water
one may as well be trying to dissolve sand.

--
Nicholas O. Lindan, Cleveland, Ohio
Darkroom Automation: F-Stop Timers, Enlarging Meters
http://www.darkroomautomation.com/da-main.htm
n o lindan at ix dot netcom dot com