Fire extinguisher

[wrp]

Great rundown sik68. Aqueous Film-Forming Foam (AFFF) is advertised as cleaning up with water and the answer from vendors is usually that the recert is required to keep the SFI rating which depends on the bottle being filled by someone certified, not locally by a DIY. That implies recert is a routine fire extinguisher check for pressure. I guess in a round about way it is but there wasn't a lot of information out there implying a corrosive effect, at least for us laymen. Question I have is that since the agent is stored in liquid form awaiting the introduction of the C02 to produce the foam, what are the characteristics of the agent in liquid form. Also, if it is film forming, I wonder if is really breathable.

Also it is advertised as a water soluble clean up, which when you talk to someone that has cleaned it up you find there is still some maintenance to do to get it cleaned up. Interesting to compare facts to marketing claims. I guess that makes being an educated consumer more important.

I am going to put a second system in my car which will give me 6 nozzles (3 per). Before I put it in I may plumb it in the parking lot and set it off to see how much a bottle covers, how it covers it and what the residue looks like.