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#861317 - 28th Feb 2014 2:23pm Mould On Paving stones : Any Solutions ?
carol Offline
Member

Registered: 30th Jul 2011
Posts: 58
Loc: wallasey
A few years ago I had my back yard paved over but every winter it gets covered in green algae. At the moment its so thick it looks like a lawn !!!! I have a pressure washer and try and keep it clean but with this weather its getting worse. Don't get much sun out there so that doesn't help I think. Is there a varnish or something similar I could paint over them. I have painted the walls white but its starting to appear on them as well. Any advice would be appreciated.


Edited by Mark (28th Feb 2014 3:22pm)
Edit Reason: renamed

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#861327 - 28th Feb 2014 3:11pm Re: Mould On Paving stones : Any Solutions ? [Re: carol]
Salmon Offline
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Registered: 8th Oct 2011
Posts: 1735
Loc: Wallasey
You could try washing soda or Jeyes fluid.There are many substances on the market which you can pour onto the paving to remove and prevent growth.B&Q or any DIY place will have various concoctions.

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#861330 - 28th Feb 2014 3:54pm Re: Mould On Paving stones : Any Solutions ? [Re: Salmon]
chriskay Offline
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Registered: 25th Oct 2007
Posts: 4868
Loc: shropshire
As Salmon says, there are several products on the market, but ordinary bleach is cheap and will usually do the job.
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#861620 - 1st Mar 2014 5:34pm Re: Mould On Paving stones : Any Solutions ? [Re: carol]
stu6278 Offline
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Registered: 20th Sep 2010
Posts: 73
Loc: New Brighton
This'll sound strange, but fill a cheap spray bottle with white vinegar and spray it on the algae. After you've sprayed it on, just leave it. It won't look as though it's done anything but after a few days the algae will start to lift off and clear itself. No scrubbing required.

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#862122 - 3rd Mar 2014 5:23pm Re: Mould On Paving stones : Any Solutions ? [Re: carol]
granny Offline

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#862255 - 4th Mar 2014 8:16am Re: Mould On Paving stones : Any Solutions ? [Re: carol]
Mark Online   Reading


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Next Question

Where can you buy full-strength white distilled vinegar ?
I'm guessing its not for your fish n chips?
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#862267 - 4th Mar 2014 8:58am Re: Mould On Paving stones : Any Solutions ? [Re: carol]
buddy Online   content
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Request Acetic Acid - chemists???

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#862274 - 4th Mar 2014 9:21am Re: Mould On Paving stones : Any Solutions ? [Re: carol]
Pinzgauer
Unregistered


As with Chris.... bog standard cheapo bleach from Tesco's, Asda, Lidls et al. Used it for years on north facing paved areas etc. Pour it on and brush gently to cover all the area. Leave for a few minutes. Use a hard yard brush and scrub (no need to go mad). Swill off with plenty of cold water. Warning... worms in the immediate run-off area DON'T like it ! It also retards the return of any green gungy stuff* for quite a while.

* Apologies for the use of detailed scientific description!

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#862513 - 5th Mar 2014 7:28am Re: Mould On Paving stones : Any Solutions ? [Re: Mark]
stu6278 Offline
Member

Registered: 20th Sep 2010
Posts: 73
Loc: New Brighton
Originally Posted By: Mark
Next Question

Where can you buy full-strength white distilled vinegar ?
I'm guessing its not for your fish n chips?


I just used the cheapest stuff i could find in the supermarket. So long as it's acidic - which is what (I presume) kills the green stuff.


Edited by stu6278 (5th Mar 2014 7:29am)
Edit Reason: typo

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#862550 - 5th Mar 2014 9:49am Re: Mould On Paving stones : Any Solutions ? [Re: Mark]
paxvobiscum Offline
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Registered: 31st May 2011
Posts: 1115
Loc: Upton
I bought white vinegar for household use last year. As I was at Light Cinema at the time I bought it in New Brighton but cannot remember if in Home and bargain or Morrisons. Not used it since but suppose handy to have in.

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