Window cleaning fluid or mix

[NotebookNewport]

My window cleaner turns up and cleans them in seconds crystal clear.
He doesn’t do the back as terraced and I might be out.
What the hell does he use?
Any ideas on best stuff or mix?
Squeegees them off, or is that the secret?
Won’t tell anyone. Honest.

 

[Mottie]

Washing up liquid. That’s what we use for our patio doors when we've run out of concentrate. Take it off with our Karcher window vac.

 

[DIYNotIan]

I think the squeegee is key. I tried all kinds of things over the years, then finally bought all the gear you see the pros using (the ones who do it old school style) and it made all the difference. It's quick too once you get the hang of it.

I use water with a little white vinegar and washing up liquid. I have read people warn against washing up liquid as it can apparently in time perish the seals and cause the units to blow. There's lots of debate about this on the web, with some swearing it's the truth and others saying it's nonsense. Like so many of these things it's hard to know who to believe sometimes!

 

[chris1982]

I thought vinegar was bad for the seals.

 

[DIYNotIan]

Well, if that's the case I'm truly buggered with my concoction! The saving grace is that window cleaning tends to live on my to do list for quite some time, so they don't get to see as much of the concoction as they should....