[dai]

It sounds like a contradiction but i use less water now i have a higher flow rate. I only have to rinse the occasional window for stubborn webs or bits of leaf around the frame that falls on the glass.
I dithered for a year and a half before i had the balls to try it. Some windows i have to rinse still but most not.
What a saving. On water as well as time.

I find this to be true when using the backpack on setting no3 instead of no2