Importance

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Abstract

A drain control system receives a first indicator of start of a cleaning cycle. In response to receipt of the first indicator, a signal is sent to turn on a drain pump mounted within a drain tank to evacuate a fluid stored in the drain tank when the drain tank is not indicated as empty. A second indicator is received that a cleaning fluid has been provided to a storage tank. After the drain tank is indicated as empty, circulation of the cleaning fluid is controlled within a drain system. The drain system drains the cleaning fluid into the drain tank after circulating within the drain system. The drain pump is controlled to turn on to evacuate the cleaning fluid from the drain tank based on a fluid level indicator generated by a fluid level sensor after the cleaning fluid drains into the drain tank.

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First Claim