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Applied Biochemists Black Algaetrine 32oz.

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Applied Biochemists Black Algaetrine 32oz. Bottle

Product Features

  • Attacks deeply rooted black algae
  • Safe for vinyl, plaster, colored and fiberglass pools

Product Description Description

Applied Biochemists Black Algaetrine controls black algae and other resistant forms in swimming pools. Black Algaetrine works best when added by itself directly to pool water; therefore it should not be mixed with soap or cleaners or premixed with other water treating chemicals. Black Algaetrine is compatible with bromine, chlorine, salt water, ozone, and minerals.

Advantage: Contains 3.07% active copper in a specially buffered system that won’t upset water balance.

Tips: Algaecides are most effective when applied in the morning on warm, sunny days. Because black algae is protected by a tough, waxy coat, it is important to use an algaecide specifically for black algae such as Black Algaetrine.

Compatible With: Chlorine, bromine and ozone sanitizers. Do not use in pools sanitized with biguanide products.

Technical Specs

Active Ingredients:

Copper as elemental………………………...……3.07%

n-Alkyl ( 50% C 14, 40% C 12, 10% C 16 )

Dimenthyl benzyl ammonium chloride….26.34%

Inert (or Others) Ingredients………………….70.59%



Brush algae spots prior to application. If necessary brush once each day for two days following application. Before applying adjust pool water pH 7.2 – 7.8 determined by a suitable test kit. To remove black deposits: Brush areas vigorously with a stiff or special algae brush immediately prior to application. This will help break up the black algae colonies that have formed. Black Algaetrine comes concentrated, therefore, dilute the proper dosage, with at least nine parts of water. Apply this diluted dosage through a plastic water can into the water around the edge of the pool. Brush again once each day for two days following application. Remove any settled algae by vacuuming. Reapply treatment if necessary.


For visible algae growth:

  • Scrub down walls and add 12 oz. of formula per 10,000 gallons of pool water. Settled algae debris may be removed by vacuuming.

Free of visible algae:

  • Maintenance of 6 oz. per 10,000 gallons of pool water every 5 to 7 days.

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Applied Biochemists Black Algaetrine 32oz. 406303
$40.05 In stock