How does the Plumbing Code regulate rainwater harvesting systems?

The Plumbing Code regulates rainwater harvesting systems by setting standards for safe collection and use. This addresses various aspects such as the design, installation, and maintenance of these systems to ensure they operate effectively while protecting public health and safety. For instance, the code may include guidelines on the materials that can be used, the treatment processes required before water is safe for use, and how to integrate these systems with existing plumbing infrastructure.

By establishing these standards, the code ensures that harvested rainwater can be safely used for non-potable applications, thereby promoting sustainable water management practices. This balance of encouraging rainwater harvesting while ensuring safety and health regulations are met highlights the importance of proper management and oversight in utilizing alternative water sources.

The other options suggest either a lack of regulation, a prohibition, or an installation requirement that diminishes the broader purpose of the code. Rather, the correct approach acknowledges the Code's role in facilitating and regulating rainwater harvesting systems towards safe and effective use.