All plumbing systems and hoses that convey water shall be designed, constructed, installed and repaired with approved materials in accordance with the International Plumbing Code (2012 edition), Subtitle F (Plumbing Code Supplement of 2013) of Title 12 of the District of Columbia Municipal Regulations.
All toilet facilities shall be easily cleanable.N
D.C. Mun. Regs. tit. 25, r. 25-C601