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Posted: Sun Mar 04, 2012 5:36 pm
by droglite
I have large patio ( c. 300 sq. meters) built with crazy paved natural yorkstone.

It has become black stained over the years and even jet washing will not remove the black stain. ( the Green algae etc is no problem)

I have tried the products advertised in the newspapers which make claims to revive everything to its original sate but this is just BS.
Do you have a product recommendation?
Is sandbalsting a sensible option?
Reggied

Posted: Sun Mar 04, 2012 5:46 pm
by Pablo
It's likely to be a lichen rather than a stain I'm know there are fixes but promise me you don't sandblast it please you'll ruin it. We have a fella on here called Roger from R&A pressurewashing and what he doesn't know about cleaning paving isn't worth knowing. Search for him in the members list.

Posted: Sun Mar 04, 2012 11:21 pm
by lutonlagerlout
a little detail here
regards LLL

Posted: Wed Mar 07, 2012 5:07 pm
by RAPressureWashing
droglite wrote:I have large patio ( c. 300 sq. meters) built with crazy paved natural yorkstone.

It has become black stained over the years and even jet washing will not remove the black stain. ( the Green algae etc is no problem)

I have tried the products advertised in the newspapers which make claims to revive everything to its original sate but this is just BS.
Do you have a product recommendation?
Is sandbalsting a sensible option?
Reggied
Hi

If you want to give me a call at the weekend, I'll talk you through the cleaning process, I see you are in the Midlands so a bit to far for us to travel really.
Phone number is on our website.

Roger