Laundry treating appliance with bulk dispenser and treating chemistry cartridge therefor

A laundry treating appliance for treating laundry in accordance with an automatic cycle of operation comprising:

• a tub defining an interior for retaining liquid;
• a liquid supply assembly in fluid communication with the tub and operable to supply liquid for use in treating laundry;
• and
• a dispenser assembly comprising:
• a housing defining a chamber with a base;
• one or more support ribs located within the chamber and collectively defining an erosion platform located above the base that is configured to support a solid block of treating chemistry;
• a liquid flow channel extending at least partially along the one or more support ribs;
• a liquid inlet to the flow channel in fluid communication with the liquid supply assembly;
• and
• a liquid outlet from the flow channel in fluid communication with the tub;
• wherein liquid supplied to the liquid inlet enters the liquid flow channel and the liquid flow channel is configured to pass the liquid under the erosion platform to erode a portion of the solid block to form a mixture of liquid and treating chemistry, and the mixture is supplied to the tub through the liquid outlet.