S.C. Code Ann. § 5-13-40: Councilmen prohibited from holding other offices during term, appointing or removing employees whom manager is empowered to appoint and dealing with employees under control and supervision of manager.

(a) Except where authorized by law, no councilman shall hold any other municipal office or municipal employment while serving the term for which he was elected to the council.

(b) Neither the council nor any of its members shall in any manner be involved in the appointment or removal of any municipal administrative officers or employees whom the manager or any of his subordinates are empowered to appoint.

(c) Except for the purpose of inquiries and investigations, neither the council nor its members shall deal with municipal officers and employees who are subject to the direction and supervision of the manager except through the manager, and neither the council nor its members shall give orders to any such officer or employee, either publicly or privately.