Random question - windshield wiper cleaning

[wordy2]

Random question of the day, when washing the back window of your suv, how seconds do you do hold the stalk down to ensure the window is clean?

 

[swathdiver]

About 3 Mississippis usually. Seems like a long time.

 

[CND17 BURBAN]

I usually go for two 1 second bursts and sometimes i need a third.