Alex is right.....any distance w/ that thing (5-gal metal Indian) on your back and you''ll have nothing left for pumping! Otherwise they are good units, will last ten years before rusting out/perforating. Just hope the crash site is close.

''Drench", I believe is the name of the retardant added to the water....a few capfuls and it does very significantly improve the effectivneness. I hadda buy a quart...enough for ten lifetimes.

Ray