Patent ID: 8017001

Claim:
A filter system for removing mineral hardness of water, the system comprising: piping to communicate water containing mineral hardness, communicate water bearing precipitate mineral hardness, and communicate post-filtered water; an eductor hopper to add a mineral hardness solubility constant modifier to a flow of water containing mineral hardness as it flows through the piping, the mineral hardness solubility constant modifier being selected to at least partially precipitate insoluble mineral hardness material from the water containing mineral hardness to form water bearing precipitate mineral hardness; a filter connected to the eductor hopper by the piping to at least partially remove the precipitated insoluble mineral hardness material from the water bearing precipitate mineral hardness to form post-filtered water; a pump connected to the piping to provide pressure sufficient to: communicate the water containing mineral hardness through the piping to the eductor hopper.