“It helps flocculate soil to open it up for drainage, better infiltration. Air and oxygen gets in, which stimulates biology,” said Gypsoil owner, Trevor Schuurrman.

“Gypsum has been used to good effect in agriculture for more than 250 years, but applying it in liquid form truly unlocks its many benefits. It is highly soluble and weight for weight is around 2000 ...

Colloidal particles do not usually flocculate on their own because they often carry an electric charge, thus repelling each other. Coagulants carry an opposite charge to neutralise the colloid ...