Nov 04, 2019 - 06:40 AM
Thank you for contacting Bio Bidet support. While not occupying the seat, you will press the POSTERIOR button down for 3 seconds and the nozzle will extend. You’ll clean the nozzle with an unused toothbrush or similar, and press STOP to retract the nozzle when done. Thank you, Bio Bidet support.
Source: DIB Nozzle Cleaning