How do you get rid of the white buildup on bricks on house exterior.
by
Kathy
What is this stuff?
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Called "Construction bloom" It is probably mostly salt. You can use a mild dish detergent and warm water with a stiff bristle brush to scrub most of it off.
Here is a link that may help you
http://homeguides.sfgate.com/removing-white-scale-red-brick-33954.html
It is called efflorescense - here are some links, naturally occurring.
https://en.m.wikipedia.org/wiki/Efflorescence
https://www.thebalance.com/definition-of-efflorescence-1798544