Green-stained brick often show no sign of a stain until they are _____ .

Name: Green-stained brick often show no sign of a stain until they are _____ .
Brand: Quizplus
Rating: 4.8 (55 reviews)

Question

Quizplus · Accepted Answer

Green stains on brick are typically caused by algae or moss growth. These stains are not typically removed by simple scrubbing or rainwater. Acid solutions such as muriatic acid can effectively remove the stains, while proprietary cleaners may contain salts that could exacerbate the problem.

Green-Stained Brick Often Show No Sign of a Stain Until