All necessary plumbing work to be done in connecting any property with a county sewer shall be done by a plumber licensed to do business in this State in a good and workmanlike manner and with good and proper materials, and shall be subject to the approval of the Department of Public Works.
Del. Code tit. 9, § 2217
Licensed plumber to connect property with sewers
35 Del
Official source: Delaware Code Online. Reproduced from public-domain Delaware statutes; confirm against the official source for the current text. Not legal advice.