Video emerged Wednesday of a third water-bucket dousing of uniformed NYPD cops, this time in the Bronx.

The minute-long clip begins with about a dozen young men and women — one leading a pre-teen girl by the hand — whooping as they assemble on a street corner, across from two female officers standing watch outside of what appears to be a public school.

Some among the group carry red, blue and white pails of water, while at least three are packing brightly hued plastic water guns.

Once traffic passes, the group heads across the street, and at least four buckets of water are unloaded on the cops, who retreat a few feet down the block, cups of coffee in hand.

At least one of the officers is seen shaking herself off as the pair turn back toward the camera, but they don’t appear to engage or even chastise the cheering group.

Law enforcement sources said that it’s believed the latest incident happened Wednesday in the Bronx but couldn’t provide more detailed information as to when or where.

The aqua attack comes just days after two similar displays of lawlessness in Brooklyn and Harlem that have cops and politicians up in arms.

“This looks like it’s becoming a disgusting trend,” said one police source. “You’re going to see this happening all over the city now, everyone trying for one-upsmanship.”

After the first two incidents, NYPD Chief of Department Terence Monahan implored cops not to take the dousings lying down by walking away from the encounters. It was a sentiment that the source agreed with.

“It’s going to keep happening until the cops start acting like cops,” said the source.

Three people have been taken into custody for those incidents, including a reputed Crips gangbanger who’s on probation.