We specialise in desalination and brak water to potable water systems.
These numbered thousands of plants, which grew on the edges of the sands, where it overlay a brak, clay soil (white with salt in summer) of Klipheuwel formation.
I have a small tank which I use for drinking, cooking and washing my car because our borehole water is brak.
Water should be acidic or neutral in pH, not alkaline (except for lime-loving species), although salty (brak) water is tolerated.
This was followed by a layer of thin, hard baked clay bricks on top of which was packed a thick layer of brak, a local soil with an exceptionally high salt content.