white staining on block paving All manner of questions and solutions to problems and issues surrounding the subject of brickwork, blockwork and stonework

[carmel12]

The block paving that has been installed for my new patio are unsightly as many bricks are stained white - believe it might be salt efferescence. Does this mean the bricks are faulty and should I insist they be replaced.
help appreciated please before I need to pay.

[stoneyboy]

carmel12,
Almost certainly salts on the surface. This may disappear with weathering but it may take some time. You could try acid cleaning a small area and see if this improves the appearance.
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