4allweknow
I've had a Karcher window wiper (two blades) for years. Used it initially but then it was stuck in the garage as found it heavy, bulky and a pest having to ensure it was charged up. I use window wiper blades, two sizes, and find them much easier to manoeuvre on the windows. For the shower I use an Oxo icing blade (just like a wiper blade) with sucker that sticks on the inside of shower screen door. Never figured out if Karcher could be stored in damp atmosphere and didn't relish coming out of shower to get the equipment then back in to clean screens.
Used my Karcher initially too but went back to ‘normal’ window cleaning - thought it was just me.
Maybe it’d be worth getting a cheaper version if you’re not sure.


