S.C. Code Ann. § 36-2-512
(1) Where the contract requires payment before inspection nonconformity of the goods does not excuse the buyer from so making payment unless
(2) Payment pursuant to subsection (1) does not constitute an acceptance of goods or impair the buyer's right to inspect or any of his remedies.
(3) Unless otherwise agreed and subject to the provisions of this chapter on C.I.F. contracts (subsection (3) of Section 36-2-321), the buyer is not entitled to inspect the goods before payment of the price when the contract provides