A tank for liquid waste retention shall be thoroughly flushed and drained in a sanitary manner during the servicing operation.
D.C. Mun. Regs. tit. 25, r. 25-B1505
A tank for liquid waste retention shall be thoroughly flushed and drained in a sanitary manner during the servicing operation.
D.C. Mun. Regs. tit. 25, r. 25-B1505