Slurries – often also called muds – play a key role in vertical drilling. Their main functions are: removing cuttings from the borehole and bringing them to the surface; tooling lubrication and cooling by reducing friction, thus increasing their average life; maintaining borehole hydrostatic balance to avoid its walls from collapsing. Drilling slurries may be prepared either with bentonite or with different types of chemical products commonly called ‘polymers’. Most importantly, slurries must be harmless to the environment. Our products are successfully employed in water well drilling in all types of soils.