Soil separation channel for dishwasher pump system

The present invention is directed to a soil separator for a dishwasher and particularly an arrangement between a soil separator chamber and a soil accumulator chamber which provides an improved apparatus and method for collecting and filtering soil from dishwasher water. A soil separator for a dishwasher includes a centrifugal soil collection wall surrounded by a spill over guide channel, surrounded by a shallow annular soil accumulator channel. The soil accumulator channel is open to the dishwasher chamber but covered by a filter screen. The accumulator channel is shallow beneath the screen and empties downwardly into an accumulator sump where accumulated soil is periodically drained. The shallow accumulator channel allows water to flush an inside of the screen to carry soil to the accumulator sump.