water marks on glass

[2dogs]

hi all
has anybody got any tips on how to remove water marks from greenhouse glass?
i have the glass from an 8x10 and a 6x6 to clean
neither is erected just yet, but id like to get rid of these marks before i put them up.
so far ive tried
window cleaner (obvious first choice i know)
bathroom cleaner
meths
vinegar
multi surface cleaner
bleach (because the glass was green when i got it)
and various combinations of the above!
without success.
ideas anyone, please

[Lesley Jay]

My OH works at a double glazing factory and deals with all the glass so I asked him. Greenhouse glass is the cheapest glass that is produced and it can have imperfections in it sometimes it has a ripple effect in the glass which could look like water marks. Have you managed to get the glass clean?

[john boy]

I usully get stains off glass with T Cut ,it doesnt scratch the glass

[2dogs]

hi lesley
i know what your oh means but these are water marks,
the glass would probably be fine but its got kinda personal
im going into town soon so ill have a look and see if i can find
something that works, if i do ill post it here.

[2dogs]

thanks john boy
ill try that later

[2dogs]

found it...
easy-do ceramic and halogen cleaner conditioner.
cleans them off a treat and leaves a protective coating!
which could be handy if i ever spill some boiling jam on the greenhouse

[susan]

My neighbour makes a paste of corn flour and water. rubs it on and polishes off with a dry soft cloth. We live in a hardwater area so as you can imagine by the end of a summer of hosing our glass is practically opaque. Her mix seems to shift it and has no chemicals. Sorry it's a bit late but might help for next year.

[marmite]

You could try lemon as the stains are dried hard water marks worked on the bath when we moved to our house. All the best Marmite. And dont forget pancake day soon if you have any left over.