If you have a Karcher window vac, how clean does it get your windows & do you have any tips?

[TunipTheUnconquerable]

Just been given a Karcher window vac and currently am getting pretty good though not perfect results.
However, there do seem to be people online who claim to get perfect streak-free windows with it.
Just wondering how common this is and whether anyone has any tips on attaining streak-free window nirvana.
I am guessing there is a bit of a technique to it....
Also, do you get better results with the concentrate that comes with it or do you manage fine with plain soapy water?

A total waste of money for me. I'm back to Vileda window cloths and water.

Ooh I love mine for inside and out.
I use a sponge and some weak washing up liquid in the water or squirt a bit of glass in too.
Then I wash the windows with the sponge and start from top to bottom left to right not stopping until I reach the bottom and overlapping each run down.
Never had a streak and if I do just go over the line again.
Don't press to hard tho it sucks the water in so just hold it against the glass don't apply much pressure at all.
Best thing I ever had and I cancelled my monthly window cleaner when we got it! Sorry Linsey window woman!

Thanks Purplehonesty!

It's good to hear from people who make it work. Mine are still pretty streaky. Practice, practice....

Hi, thanks for the ‘dont Use too much pressure’ tip. I love the vac but do get streaks so will try using your advice. Many thanks.

I find it streaky for windows but great for mopping up drink spills!!!

Love mine. Also cancelled the window cleaner. Takes me half an hour to do the whole house inside and out, uses minimal water and no spillages. Mine came with a spray bottle with a microfiber cloth that I clean the windows with, then vac the water off - gently.