"andrewpreece" wrote in message
...
Can anyone help me?

I have recently purchased a property which is 18 months old in Perth,
Scotland. The problem is that patches of whiote powder are appearing on
the bottom few rows of bricks around the house! Any idea as to what can
be causing this?

Efflorescence of salts from the bricks, due to water allowing the salts to
migrate.
I believe it will cure itself in a few years.

Possibly not. There's often an almost infinite supply of the mineral in the
ground.