Friday, Oct 26, 2012 at 10:49
One of the key things of a spinefex fire is that it burns in fuel that gets built up and thickens until it ignites.
This means that your means of puttting it out needs to be sustained.
I.E. Using a 1kg fire extinguisher may seem to put it out but it re-ignites.
Our solution is to carry our a 5lt garden sprayer which holds our daily water.
We enlarged the nozzle slightly until it produced a steady stream of water.
THis arrangement is supplemented by normal extinguisher and gives a sustained steady stream.
We get water for morning tea etc from this sprayer and this means we automatically pump up the units air pressure when we stop - and as a good seal lasts for a couple of hours the unit is always ready to go in those vital first few seconds.
Our experience is that the grass build up likely to catch fire occurs under the car around the exhaust/
suspension components - and stopping to
check and pull out grass every break is very important.
To make this happen you need to additional items - a pair of ready gloves and a ground mat.
The ground mat is important as overgrown tracks tend to cover the ground in prickly bits and unless one takes this seriously you tend to put off getting under the car which leads to bigger grass build up.

Madigan line Grass
Survival hint - the further back you are in a group of cars the less the issue.
AnswerID:
497427
Follow Up By: Member - Duncan W (WA) - Friday, Oct 26, 2012 at 11:06
Friday, Oct 26, 2012 at 11:06
Robin you forgot to mention a hook to get into those tight spots.
I made one up out of 6mm rod but a long hanging basket hook will do the job. i have one on both sides of the car and also spray bottles.
In the spray bottles add a bit of detergent as the water will "stick" more to the surface of things. Actually the detergent increases the viscocity of the water and makes your water go further.
FollowupID:
773265
Follow Up By: Robin Miller - Friday, Oct 26, 2012 at 12:05
Friday, Oct 26, 2012 at 12:05
Hi Duncan
Yep a hook might be useful for some - but I will have to pass on the detergent as it makes the coffee taste lousy.
Must look for something that you can put in water though as we also don't put anything in our windscreen washer water so that it can be drunk in emergency.
FollowupID:
773271
Follow Up By: Member - Duncan W (WA) - Friday, Oct 26, 2012 at 15:40
Friday, Oct 26, 2012 at 15:40
You may have to invest in a couple of new squirty bottles then Robin so that you can have clean water and soapy water.
FollowupID:
773278