I find fanning down the window the flow And rinse is better for maintenance cleans I love the 35cm medium hybrid extreme combo..You get more flow but you pay for that with pressure. I suppose it depends on how dirty they are?
Rinse bars are great for maintenance cleaning but when there is a fair amount of cobwebs, bird muck, leaves etc etc then you're better off with some pressure to blast it all down the glass.
The one issue I am finding with the 14" rinse bar on the extreme is lots of tiny "bits" left on the glass, it doesn't happen as much with the shorter rinse bars.Its most likely down to the natural bristles holdng on to stuff. I spent half hour cleaning the brush up like new, only for it to become filthy again on the first window. The muck mostly comes from the sills but I cant be bothered walking around with a wet cloth in my pocket all day.
And the low pressure 26cm rinse bar is kind of a double whammy because it "rinse bars" and its great for rinsing off too as there is plenty of pressure there.
Just to add I always have a sill clothing my pouch for the bottom windows help saves any brush clogging up.
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