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Perhaps the most aggravating strain of algae, it has been compared to herpes; "once you've got it, it's there for life." This is not entirely accurate, but the difficulty in eradication is due to the strong roots and protective layers over top of the black algae plant. Black algae will appear as dark black or blue/green spots, usually the size of a pencil eraser tip. Their roots extend into the plaster or tile grout, and unless the roots are destroyed completely, a new head will grow back in the same place. The heads also contain protective layers to keep cell destroying chemicals from entering the organism. Like yellow algae, black strains can bloom even in the presence of normal sanitizing levels and proper filtration. I was once told that this form of algae commonly enters a pool inside the swimsuit of a person who's recently been to the ocean.
Proper chemical balance and sanitizer residuals will prevent many opportunities for algae to bloom. high pH and low chlorine (or other sanitizer) can give algae a great start to genesis. General cleanliness of the pool is also important. Organic material and bacteria can contribute to algae growth. Regular brushing of seemingly clean pools is not only good exercise for you, but prevents dirt from harboring in the pores of the plaster, which is a good start for an algae colony.
The use of specialty chemicals or algaecides is recommended to provide a back up to normal sanitation and filtration processes and is completely necessary for many pools. These chemicals are described below:
Potassium Tetraborate:
This chemical, when added to the pool water in proper dosage, prevents algae from converting carbon dioxide into the fuel it needs for growth. Manufactured under the trade name Proteam Supreme. An extraordinary product.
Chitin:algaestatic (that is, to prevent algae growth). Chitin has the ability to coagulate and remove a wide variety of suspended materials and impurities from the water. This allows the sanitizer to more effectively kill contaminants unobstructed. It also improves the effectiveness of the filtration equipment. Sold under the trade name Sea-Klear, chitin can be a valuable weapon in your algae arsenal.
Algaecides and Algaestats:
Quaternary Ammonium Compounds:
A low grade type of algaecide, Quats, as they are called, will usually have "10" somewhere on the bottle, representing 10% active ingredient. Although available at a lower cost, quats tend to produce a small amount of surface foaming. They are most effective as an algaestat, that is, as a prevention, not a cure.
Polymers:
Polymers are long, complicated chemical chains that behave in water both as an algaestat and an algaecide. They are available in percentage strength of 30 - 60%, are non foaming, and work well as general, all around algae treatments. Poly-Quats are a blended compound of polymer and quats.
Copper Based:
Copper is a proven algaecide and algaestat. Available in varying non foaming strength of 3 - 10%. It works very well on all types of algae, but it has the drawback of staining white plaster surfaces a light blue/green color if it precipitates out of solution. Most copper based algaecides are chelated, which means that agents have been added to prevent this, such as Lo-Chlor Algaecide.
Silver Based:
Silver has been shown to be an effective bacteriostat, which means that it works to prevent bacteria from reproducing. Non foaming and effective with pink algae. In high doses, reactions with sunlight can cause colloidal silver to deposit as black stains on white plaster. When using copper or silver algaecides, the use of a sequestering agent is recommended.
Chlorine Enhancers:
These are not algaecides, but work to provide a synergistic boost to hypochlorites when added separately, but at the same time. Sold under trade names like Mustard Buster, Yellow-Out or Yellow Treat, it is most effective on, you guessed it, yellow algae. Since it is not an algaecide, the makers are not required to tell what it is made of, but we do know that it works quite well, in conjunction with a little brushing and vacuuming on your part.
What else can I help you with?
Does Pebble Sheen ever stain grout?
Pebble Sheen does not stain grout. It is a clear product that leaves a glossy shine. It protects against staining.
Can black line stain be removed from teeth?
Yes. A dental hygienist can remove the stain. This stain is not a reflection of poor dental hygiene.
How do you remove a black permanent marker stain from carpet?
kuo
What is a reagent that stains the stored food of a green algae black?
Lugol's solution is commonly used to stain the stored food of green algae black. Lugol's solution contains iodine, which reacts with starch in the stored food of algae, turning it black or blue-black upon staining.
How do you remove black heroin stain out of a wooden drawer?
Try sand paper.
Cleaning Green algae stain?
Green and black algae can leave permanent and unsightly stains. The best way to clean them is to use an oxygenated bleach cleaner, which is sold commercially in stores.
What are the best methods for removing a black stain from stairs?
To remove a black stain from stairs, the best methods include using a mixture of vinegar and water, applying a baking soda paste, or using a commercial stain remover. Scrubbing the stain gently with a brush and rinsing with water can help lift the stain effectively.
How can I effectively remove black spots on clothes?
To effectively remove black spots on clothes, try pre-treating the stain with a stain remover or a mixture of water and vinegar. Then, wash the garment in the hottest water temperature recommended for the fabric. If the stain persists, consider using a bleach alternative or taking the garment to a professional cleaner.
How difficult is it to remove a stain from a black shirt?
It is really difficult to remove a stain from a black shirt. Some steps should take into account are wetting a clean cloth in cool water and wring it out, filling a sink or a clean bucket with warm water and placing a bar of soap into the water for a moment to add lather, letting it be for some minutes.
How do you remove black iron marks from clothing?
Iron marks burn the fabric, which damages it, so it may not be removeable. If you can get the black mark off, the fabric underneath it will be weaker than it originally was. To try and remove the stain, scrape off any charring, then pretreat the stain, rinse it, and then wash it as you normally would.
How can I effectively remove a black stain from wood?
To effectively remove a black stain from wood, you can try using a mixture of equal parts vinegar and water to gently scrub the stain. Alternatively, you can use a commercial wood cleaner or a mixture of baking soda and water. Make sure to test any solution on a small, inconspicuous area of the wood first to ensure it does not damage the finish.
How can I effectively remove a black stain from my stairs?
To effectively remove a black stain from your stairs, start by mixing equal parts of vinegar and water in a spray bottle. Spray the solution onto the stain and let it sit for a few minutes. Then, scrub the area with a brush or sponge. If the stain persists, you can try using a commercial stain remover or a mixture of baking soda and hydrogen peroxide. Remember to test any cleaning solution on a small, inconspicuous area first to ensure it doesn't damage your stairs.
