US Patent 12133488 Low flow plumbing system

A plumbing system and water transport method. The system includes a global water source, a one way water transport mechanism, a growing tray, and a local buffer. The local buffer separates the global water source and the growing tray to prevent cross-contamination of water. The local buffer also continuously provides water to the growing tray on demand without the need for filtering or dumping of used or excess water. This results in low flow, efficient water transport.