Sump assembly for a re-circulating warewashing machine

A sump assembly of a re-circulating warewashing machine having a rinse cycle and a wash cycle, comprising:

• a) a sump having a top, sides, a bottom, and a cavity in which water used in the re-circulating warewashing machine is stored, the water including rinse water from the rinse cycle and soiled water from the wash cycle, during the rinse cycle the rinse water is proximate the top of the sump and the soiled water is proximate the bottom of the sump;
• b) a divider having a partition extending from opposing sides of the sump proximate the top of the sump toward proximate a middle of the sump, the partition defining a gap between the divider and the bottom of the sump, the partition defining a first portion and a second portion of the cavity, the first portion and the second portion in fluid communication via the gap interconnecting the first portion and the second portion;
• c) a drain in fluid communication with the second portion, the drain having an opening;
• d) a first water level approximately level with the opening of the drain;
• and
• e) a second water level as the rinse water enters the first portion of the cavity, the second water level being above the opening of the drain, the rinse water raising the first water level to the second water level in the first portion, the drain maintaining approximately the first water level in the second portion, the rinse water exerting a pressure on the soiled water in the first portion thereby directing the soiled water in the first portion through the gap and into the second portion where the soiled water is directed into the drain until approximately the first water level returns in the first portion thereby replacing soiled water with rinse water in the sump during the rinse cycle.

A sump assembly of a re-circulating warewashing machine having a rinse cycle and a wash cycle, comprising:

• a) a sump having a top, a bottom, and a cavity in which water used in the re-circulating warewashing machine is stored, the water including rinse water from the rinse cycle and soiled water from the wash cycle, during the rinse cycle the rinse water is proximate the top of the sump and the soiled water is proximate the bottom of the sump;
• b) a drain having an opening;
• c) a divider defining a first portion and a second portion of the cavity and having a top with an aperture proximate the opening of the drain, the first portion being in fluid communication with the second portion, the second portion being in fluid communication with the opening of the drain;
• d) a first water level approximately level with the opening of the drain;
• and
• e) a second water level as the rinse water enters the first portion of the cavity above the opening of the drain, the second water level covering the aperture of the divider and filling the second portion proximate the opening of the drain to create a siphon directing soiled water proximate the bottom of the sump from the first portion into the second portion where the soiled water is directed into the drain thereby replacing soiled water with rinse water in the sump until the aperture is no longer covered with water in the first portion proximate the first water level.

A method of disposing of soiled water from a sump of a re-circulating warewashing machine having a rinse cycle and a wash cycle, comprising:

• a) dividing the sump into a first portion and a second portion, the first portion and the second portion being in fluid communication, the second portion being in fluid communication with a drain;
• b) directing soiled water from the wash cycle into the sump;
• c) storing the soiled water in the sump at a first water level;
• and
• d) directing rinse water from the rinse cycle into the first portion of the sump proximate the top of the sump increasing the first water level to a second water level in the first portion, the drain maintaining the first water level in the second portion, the second water level directing the soiled water proximate the bottom of the sump from the first portion into the second portion where it is directed into the drain until approximately the first water level returns in the first portion.