Info needed: Cleaning a Camouflage net help needed

[Robin Craig]

So, this is a modern ex CF cam net that saw service in Afghanistan.

When dry it doesn't look very temperate but when wet it does.

I have tried washing it wish a hose on a concrete slab, a number of times, this picture shows it recently wet, the dry picture wont load.

Am I being unrealistic? How do I get the dust out of it if I am not?

It is nearly 7 metres in each direction and it isn't lightweight.

It is summer so we are not getting a lot of rain.

What assistance can anyone give please?