S.C. Code § 6-11-1240
If the notice or notices prescribed by paragraph (1) of Section 6-11-1230 shall have been given and any hearing requested pursuant thereto shall have been held, all sewer service charges imposed by the commission following that procedure under authority of this article and not paid when due and payable shall be and constitute a lien upon the real estate to which the sewage service concerned relates so long as the sewer service charges remain unpaid. In addition to such other rights and remedies as may be available to the commission in law or in equity for the collection of the sewer service charges, the lien may be enforced by the commission in the same manner and fashion as the lien of property taxes on real estate. The lien herein provided shall be superior to all other liens except liens for unpaid property taxes.
The method provided in this article for the enforcement of the collection of past due sewer service charges shall not be the exclusive method of enforcing such collections and the commission is fully empowered to enforce the collection of any such sewer service charges in any other lawful manner in all or any part of the district, including particularly by way of a contract with a water distribution agency as authorized under paragraph (2) of Section 6-11-1230.
S.C. Code § 6-11-1240