All you need is one of these https://www.wilko.com/en-uk/wilko-window-shower-squeegee/p/0437325
Best tool I have ever bought
I bought a window vac and this beats it hands down, never used it since
how does that get the window washed 
Thanks all. Looks like the Karcher wins. As per AA instructions, I shall buy one, use it once and put it away with the rest of the used-once tat
I’m sure there’s a guy on Vinyl Engine who swears by the Karcher vacuum for cleaning records. So you might get more use out of it than you think.
i’ll have to try that - clean windows, get loads of grit in the fucker, and scratch myself a new groove
Let us know how you get on.
Not sure I’d be using it for colonic irrigation myself tbh
Don’t do it. Seriously Wilko wiper will beat any vac.
Bit pricey, and out of stock 
- will see if I can find a used one on gumtree.
Good luck. No one will part with one.
If it was £100 it would still be a great buy