• Improves water quality while suppressing algae growth
  • Softens water
  • Additional dosage varies on water loss but usually added once with infrequent adjustment amounts


  • Liquid algaecide with initial dose and weekly doses to follow 
  • Prevents all types of algae
  • Non-foaming for pools with water features


Algae are microscopic aquatic plants.  THey do not have the same structure as higher plants such as roots, stems and leaves.  However, they are like any other ordinary plant in that they require the same type of nutrients to grow and carry out photosynthesis.

Green algae are the most common type with over 7,000 different species in existence.  Approximately ten percent of these are marine species(found in the ocean) with the remainder being found in lakes,rivers,ponds and swimming pools.   Green algae can be free-floating or surface clinging and can be found in all types of pools.

The term "Mustard Algae" is actually more a description as this is really green algae that has adapted and become somewhat resistant to chlorine.  This resistance is due to the presence of compounds called carotenoids.  Carotenoids (such as beta-caroten) are found in many photosynthetic organisms.  These compounds are responsible for color, which is why mustard algae are yellow rather than green(and why leaves show color in the fall).  In non-photosynthetic organisms(such as humans)carotenoids must be obtained through a proper diet.  They prevent oxidation (they are anti-oxidants) and are linked to increased health including enhanced immune system and reduced cancer rates.

As anti-oxidants, carotenoids protect against damage caused by oxidation.  Algae can use these compounds as a defense mechanism to help them survive in a chlorinated environment.  Because carotenoids protect against oxidation, chlorine (as an oxidizer) may have little effect on algae once this defense mechanism has been activated within the cells.

Black algae are aquatic photosythetic bacteria called cyanobacteria.  They can grow in large colonies on the surface of the pool.  These bacteria can grow somewhat protected from the surrounding environment.  This is because cyanobacteria form a sticky layer on the outside of the cell which traps sediment (including calcium carbonate) from the water.  When the sticky layer becomes covered,  the bacteria will grow through and over the sediment continuing to photsythesize and grow.  Brushing is extremely important when treating black algae because that protective layer has to be broken in order for the sanitizer to come in contact with the cyanobacteria.



The use of maintenance algaecide contributes to improved water quality and helps prevent problems before they begin.  In the event of an algae bloom, immediate treatment is the key to having the pool up and going again as soon as possible.  


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