Precise pressure control: Maintain the coffee extraction pressure within the normal range to avoid over-extraction or insufficient extraction, ensuring a rich and flavorful coffee with full aroma release. On-off water flow: Start and stop the water supply quickly as needed, and precisely control the duration of water flow in accordance with the extraction process to ensure consistent extraction parameters for each cup of coffee. Diversion adjustment: Divert hot water to the steam bar or hot water outlet to achieve a multi-functional switch between extraction, milk frothing, and hot water production, enhancing the practicality of the equipment. Pressure buffering: Mitigate the pressure shock when the water pump starts, protect the core components such as the boiler and water pump, and extend the overall lifespan of the coffee machine. Drainage Tee Adapter Drainage Pipe Fitting For Washing Machine Dryer Drain With Extended Drainage Hose, Weight: 0.110231131 Pounds, Manufacturer: GENTERUN