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Has anyone a remedy for this?

Posted: Mon 26 Jan 2015 12:01 pm
by Steve C
This winter I have noticed that the paving slabs around the villa have got black mould spots growing on them.
I thought of using jayes fluid but can't stand the smell of it. So if anyone has any idea's I would be
appreciative.

Steve

Re: Has anyone a remedy for this?

Posted: Mon 26 Jan 2015 12:07 pm
by Groucho
Good old-fashioned vinegar... choose which type you prefer - I'd suggest apple (Elma) as it's cheaper and actually smells less like a Chippy. Try a small patch and see how it goes.

Re: Has anyone a remedy for this?

Posted: Mon 26 Jan 2015 12:20 pm
by Keithcaley
Cheap Bleach, diluted to about 1 part bleach to 10 parts water will still give you a concentration of around 5,000 parts chlorine per million (that's over 1000 times more chlorine than is used to control algae in swimming pools!).

Use a watering can, and a stiff brush to give it a good scrub.

Rinse off afterwards, but keep it away from plants!

If you don't fancy ending up with 'spotty' shoes and trouser legs from the chlorine, you can always use Kosla oxy-action bleach, as used in the washing machine. It is a lot more expensive, but I'm told it works wonders on mouldy paving slabs and decking.

Re: Has anyone a remedy for this?

Posted: Mon 26 Jan 2015 12:23 pm
by Steve C
Have tried a test area with vinegar and will now go and get some bleach. Thanks very much for both of your suggestions.

Re: Has anyone a remedy for this?

Posted: Mon 26 Jan 2015 12:30 pm
by Groucho
The vinegar will kill the mould - cleaning it off is a different matter- a pressure washer is best.

Re: Has anyone a remedy for this?

Posted: Mon 26 Jan 2015 3:06 pm
by MrA
Be careful with a pressure washer, it takes the surface of the slabs then it becomes worse and worse

Re: Has anyone a remedy for this?

Posted: Mon 26 Jan 2015 3:19 pm
by waddo
I get the same thing all over my drive way, but being a lazy git I just wait for the summer sun to dry it up and then brush it away.

Re: Has anyone a remedy for this?

Posted: Tue 27 Jan 2015 7:32 am
by Steve C
Thanks for all replies and yes I do want to avoid pressure washing if possible.

Steve

Re: Has anyone a remedy for this?

Posted: Tue 27 Jan 2015 7:36 am
by Owl Lady
Morning Steve (lazy B----r,only joking!)