Using a High Density Garnet solves a major filtration problem. A properly designed multimedia filter system contains filter media of large grains on top and small grains on the bottom of the filter and provides superior performance even after many backwashings. The solid substances getting into the entire filter bed result in increased solids storage, longer filter runs and higher filtration rates.

This stable condition of large grains above finer ones is achieved by the use of filter material of different sizes and specific gravities.