Posted by Robert Kosusnik on Monday, September 23, 2002 at 4:47AM :
In Reply to: Re: more about the killed part? posted by Paul (in NY) on Saturday, September 21, 2002 at 5:20PM :
Some of the places that service fire extinguishers have a closed circuit system for recovering the dry chemical powder. This way the good stuff can be recharged into the next extinguisher that is done. Robert