Patent attributes
A water softening device for use for a pet is provided, comprising: a first chamber having a shape of a hollow container; a second chamber having a shape of a hollow container, the second chamber being detachably attached to an upper section inside the first chamber; and a filter cartridge having a plurality of openings and containing an ion exchange resin therein, the filter cartridge being detachably attached to a bottom section of the second chamber and positioned to protrude from the bottom section of the second chamber to a lower section inside the first chamber. The second chamber is configured to receive and contain first water including tap water, and the lower section inside the first chamber is configured to receive and contain second water that is the first water after passing through the filter cartridge based on gravity.