| abstract |
Method of and a multilayered filter for softening and filtering water. The water to be softened and filtered flows through a first layer of particles of activated carbon, a second layer of beads of an organic ion cation exchange resin, a third layer of granules of sodium aluminium silocate, and a fourth layer of grains of filter sand which layers are arranged vertically in a tank. The filter comprises the four above identified layers of filter materials. |