Backwashing the pool filter this morning, and having recently watched _Dune_, can't help but wonder what the first Fremen off-world must have thought when they encountered people throwing away gallons of water _just_ to clean some crud off their sand...
(Other than, y'know, crysknife to the face.)
One also wonders how they dealt with the problem of their hidden sietch water-hoards getting all algified and gross without losing or unusablizing some water in the process.
I suspect there is a small amount of algae in the sietch reservoirs; ISTR mention of small fish kept there to eat any sandtrout that manage to get to the water.
I may be conflating things from God Emperor or the Dune Encyclopedia; it's been a while.
@cerebrate there are edible algae you know, and there wouldn’t be any that they didn’t introduce on Arrakis
The Corrino Imperium does not strike me as a place that is incredibly meticulous about its biocontrol.
@cerebrate
Sietch water all teeming with green algae gives new meaning to the phrase "the water of life"...