Cement fountains – This alga when allowed to grow out of control, becomes thick, slimy, and occasionally stains the cement your fountain. Knowing how to clean the algae from your cement fountain allows you to keep your outdoor garden accents looks nice. Preventive cleaning also keeps algae from coming back.
To remove algae from cement fountains, fill a 591ml. plastic spray bottle with bleach half and-half with water. Shake vigorously to mix the solution. Drain water from your cement fountain. If it’s an electric fountain, unplug. Spray bleach-water solution liberally over each area of algae growing on the cement. Let it sit for about 15 minutes for the algae to react to bleach. Much of algae will break away from the concrete on their own.
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After that to remove algae from cement fountains, scrub the fast-on algae on cemented fountain texture with a stiff-bristled scrub brush. Using a circular motion to work with the friction to movement to assist in removing the algae fixed to the fountain. Spray more bleach-water in the area for help. Rinse the fountain with a high-pressure garden hose. Rinse it several times until the water running from the fountain is clear rather than colored green with algae. Turn the fountain head so it can dry.