Patent ID: 8826700

Claim:
A detergent supply apparatus comprising: a detergent box; and at least one liquid detergent containing unit provided in the detergent box to move a liquid detergent using a siphon phenomenon, wherein the liquid detergent containing unit comprises a siphon pipe to induce a siphon action, a siphon cap coupled to the siphon pipe, and at least one residual water hole formed through a bottom of the liquid detergent containing unit, the siphon cap comprises at least one cap protrusion fitted into the residual water hole, and at least one gap is defined between the residual water hole and the cap protrusion when the at least one cap protrusion is fitted into the at least one residual water hole, the gap being dimensioned such that residual water is discharged from the liquid detergent containing unit through the gap and the liquid detergent is not discharged through the gap.