They can dig that much trench and they will need it because they...

They can dig that much trench and they will need it because they have low grades and will need to pump 50% more brine than RWD into ponds that are 50% larger if they are to match output.
But try telling this to those who don't seem to appreciate the difference between a solute and a solvent.
If MacKay don't have access to a basal aquifer then their surface water recharge will dilute their brine further.
We know more about KLL trench flows once they have dug their significant trench. Their released data was desk top stuff.
KLL have very good grades and appear to have good deep aquifer flows but their resource remains relatively small and looks like it will remain so after the current drilling campaign.
I think Blue Fox is confused regarding the status of the resource defined at LD (because it wasn't defined by a German MOP specialist)