Interesting that the Cessna was sprayed with water for 5 seconds or so before the foam.
I guess this was because it takes that long for foam to mix, or was their method in this technique? ie cooling the belly with water that has better penetration than foam?
If not then having the Monitor charged with foam is better practice rather than pushing any fuel spill underneath the pilots door with water?
Any other armchair experts have a view
Mickjoebill