Sprinkler water continually spraying over a red brick planter or walkway can leave behind chalky white mineral deposits. While commercial cleaning products are designed to remove lime deposits, you can remove them yourself using white distilled vinegar, which is a mild acid. Before using any cleaning product on your red brick, test the cleaning solution on an inconspicuous area of the brick to ensure the product doesn't stain or bleach the surface.
Fill a bucket with hot tap water.
Add 1 cup of white distilled vinegar for each gallon of water.
Dip the brush in the solution and scrub the lime deposits back and forth. Dip the brush in the cleaning solution frequently.
Rinse the area with fresh water after removing the lime deposits.