Good morning class, please take your seats. Today we take a closer look at algaecides and algaestats.
Algae-cide, draws its meaning from the Latin to kill. Algae-stat is from Greek, meaning to stand.
In practice, many pool algaecides also function as an algaestat, but not always the other way around.
Let’s look at the chemical make-up of some popular pool algaecides, and pool treatments that behave as an algaestat, controlling algae growth.
- Used to Kill visible and active algae colonies.
Copper: Copper is a powerful disinfectant that kills and controls algae of all types. Elemental copper is suspended in a chelated formula, to keep the copper in solution. Super Algaecide is our 7% copper blend, and we also carry the Eclipse3 mineral treatment products.
Poly Quats: Adding long polymer chains to the formula maintains protection against future algae blooms, giving our Algaecide 60 Plus and Algae Clear algaestats in addition to their algae killing properties.
- Used to Prevent algae spores from colonizing.
Quats: Quaternary Ammonium compounds are long alkyl chains that are formed from amines and chlorides. We have 10% and a 50% quaternary algaecides for economical algae prevention. In high enough doses, they can also have algaecidal properties.
Phosphate Removers: Phosphates can enter into the water from soil, rain, lawn clippings, fertilizers and are a tasty food for most algae types. Pools with repeated algae blooms can now test for Phosphates, and use products like SeaKlear phosphate remover or Phos Free.
Borates: Products that contain borate salts like potassium tetraborate wage an attack at what algae needs to survive. By removing C02 from the water, it creates a difficult environment for algae to grow.
Pool Covers that block sunlight could also be considered an algaestat, as would good filtration. Chlorine is a great Algaecide, I like to say – and in sufficient dosages to reach 30 ppm, using pool shock alone, with proper pH, is a popular treatment.
If we can help you in your algae battles, give us a call at 800-288-SWIM, or send an email to me – Dr. Pool.