CallMeVilla
Well-Known Member
- Joined
- Feb 9, 2010
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Got a large red brick patio near the beach. It has growing patches of white powdery effloresence (sp).
I have tried a relatively strong solution including phosphoric acid and scrubbing ... no help.
What is the best method for removing these white patches?
I have tried a relatively strong solution including phosphoric acid and scrubbing ... no help.
What is the best method for removing these white patches?