Green plumbing refers to plumbing practices that prioritize environmental sustainability and resource conservation. This includes using materials that are eco-friendly, such as recycled pipes and low-flow fixtures, which help reduce water consumption. Green plumbing also focuses on energy efficiency, often incorporating solar water heaters and tankless water heaters to minimize energy use. Additionally, green plumbing promotes the use of rainwater harvesting systems and greywater recycling to make the most of available water resources. By implementing these practices, homeowners can lower their utility bills while contributing to a healthier planet.