That's one way to reveal your baby's gender.

The Sacramento Fire Department shared a video on their Facebook page of Sacramento Firefighter Tim Robertson and his partner Mary revealing the gender of their baby with the help of a water hose.

Shooting high into the sky and with the help of dye packets, the water eventually turned blue, revealing a boy for the happy couple.

Robertson is currently serving as a Drill Instructor at the Academy. The post notes that the other Drill Instructors had the sealed gender results from the doctors office to help with the surprise..

Umute the video to hear the crowd's reaction.