Hard water stains

[LS Window’s]

Hi all. Got a new job Monday but the customer has an issue with hard water stains on one of his windows where he’s had a sprinkler on his grass and it’s hit the glass. Any suggestions on easiest way to get it clean?

 

[Part Timer]

Viakal, buy it from most large Supermarkets

 

[LS Window’s]

Viakal, buy it from most large Supermarkets

Thankyou 

 

[scottish cleaning service]

I have recently bought HG professional limescale remover. I have a job removing limescale from pvc and will let the forum know the results.

 

[Martyn]

Wynsol Crystal Clear 550.

 

[aaa]

The pink stuff. 

 

[scottish cleaning service]

The pink stuff. 

I've got tubs of the stuff and keep forgetting to try it out on the limescale. thanks