S.C. Code § 49-19-1930
Any person owning land assessed for the construction of any canal, ditch or other improvement under the provisions of this chapter shall have the privilege of paying such assessment to the treasurer of the board of supervisors at any time on or before a date to be fixed by the board of supervisors and the amount to be paid shall be the full amount of the tax levied, less any amount added thereto to meet interest. When such tax assessment has been paid the secretary of the board shall enter upon the Drainage Tax Record opposite each tract for which payment is made the words "paid in full" and such tax assessment shall be deemed satisfied and the secretary of the board of supervisors shall also make or cause to be made the same entry opposite each tract for which payment is made in the table included in the certificate filed in the office of the clerk of the court of common pleas under the provisions of Section 49-19-1770.
S.C. Code § 49-19-1930