- (a) Cross connections between safe and unsafe water supply distributing systems shall not be permitted unless such connections have the written approval of the Division of Public Health.
- (b) No plumbing, fixture, construction, valves, fitting, device, apparatus or connection that will provide a cross connection between a safe water supply and a sewage system or will permit or make possible the back flow of sewage or waste into a water supply system shall be installed.
47 Del. Laws, c. 184, §§ 6, 7; 16 Del. C. 1953, § 7910; 70 Del. Laws, c. 147, § 21