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AC Pressure

  • Posts: 138
White marks on block paving
« on: June 10, 2010, 05:44:46 pm »
Hello guys i cleaned a drive recently and part of it was covered in white marks which still remain after cleaning any idea what may be causing this and how to remove it.
The area in pics is under a porch area the rest of the drive is fine came up lovely.

http://i741.photobucket.com/albums/xx54/baldbrummy/Whitemarks2.jpg

http://i741.photobucket.com/albums/xx54/baldbrummy/Whitemarks.jpg

http://i741.photobucket.com/albums/xx54/baldbrummy/WhiteMarks3.jpg


AC Pressure

  • Posts: 138
Re: White marks on block paving
« Reply #2 on: June 10, 2010, 07:39:41 pm »
i have seen this before but not as much as this can it be removed

Blast Off Stoke

  • Posts: 119

JSMC

  • Posts: 3511
Re: White marks on block paving
« Reply #4 on: June 11, 2010, 10:00:23 pm »
is this common when washing? does this happen after washing or is it sometimes already there on paving

Griffus

  • Posts: 1942
Re: White marks on block paving
« Reply #5 on: June 11, 2010, 11:48:38 pm »
Looks like clay pot plants etc. have been there. These can leave a permanent stain.


AC Pressure

  • Posts: 138
Re: White marks on block paving
« Reply #6 on: June 12, 2010, 05:40:08 pm »
Would have to be very big clay pots this covers an area of 3 by 2 mtrs  :)


sherco

  • Posts: 1041
Re: White marks on block paving
« Reply #8 on: June 12, 2010, 06:45:52 pm »
Yes definitely efflorescence, i get it a lot when I'm cleaning Terracotta floors.
Natural stone floor restoration service.
Natural stone fixing and repairs.
www.poshstonefloors.co.uk