How to remove algae from cement.? We have algae on our front step. How could we remove...
We have algae on our front step. How could we remove that algae without hurtful the flowers in the flower bed?
Answers: Pressure wash is the most environmentally friendly choice.
If the person above recommended Muriatic-acid (not sure what maurice acerbic is), I would not do that. Muriatic acid is concentrated Hydrochloric sharp, not only is it an extremely strong sharp so it can be dangerous to use if done correctly, it also can etch the concrete. The acid will also effect the pH surrounded by the surrounding soil.
Try a mild solution of bleach and water contained by a spray bottle. Let it set until the green fades, consequently wash beside a water hose.