Which Washer Bottle

G'day, Paul. The electric screenwasher is a good bit more convenient to use. The toughest part is coming up with a wiper switch equipped to operate it, and even that's not too hard depending on what year and model of car we're talking about here (please state). Wire-up is easy: one wire from the "W" terminal on the wiper switch to the electric pump, which gets its earth locally via a short wire secured under one of the washer bottle mounting screws.