[R.V.A Window Cleaning Services]

I have couple of windows on a house i started cleaning  last month and i have noticed some marks on the glass that look like water marks.
They are very hard to remove, i can only put it down to some sand or lime stone slabs that are above them on the mini wall that surrounds a flat roof, so when it rains the water from the slabs drips onto them.
This has properbly been going on for some time now and wondered if there is any thing i  could use to remove the marks

[R.V.A Window Cleaning Services]

mineral deposit remover perhaps?

Is their such a product? if so do you know what is called apart from mineral deposit remover! and where can it be bought from?.

[Chris Galloway]

Let us all know how you got on, i got a few custys i could sell the service too

[Xline Systems]

i know something thats awsome for removing limescale watermarks. its called multinex. but caution nasty stuff. you must i repeat you must wash off straight away. can remove paint and allsorts

[R.V.A Window Cleaning Services]

Thanks JC i'll give it a go and let you know how it goes, it won't be for a couple of weeks though

[Londoner]

A lot of ordinary shower cleaners from Tesco work just as well. Cement washdown can permanently etch glass if it is left on.

[baldeagle]

Lime scale remover, for taps and baths, from Morrisons.
Baldeagle

[dai]

Lawn sprinklers are the worst culprits for leaving mineral deposits on glass, not that we have had much need for them this year.