Got Algae? Removal Tips

Algae is one of the most persistent forms of plant life. It can be free floating in the water or it can cling to walls, floor and equipment. Nourished by sunlight and heat, algae thrives in water with a high pH level and water with a high nitrogen or phosphate level. If treatment is not taken quickly, it gets harder to kill and remove. Please review the following list and click on any issue that may help you eliminate or prevent algae growth.

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Steps for elimination of algae

1. Run Pump for 24 hours continuously.
2. Shock Pool raise free available chlorine to 3-5 ppm with a chlorine shock.
3. Check pH and balance to 7.2 – 7.6.
4. Brush and Vacuum the algae at least twice daily.
5. Add FROG BAM 2 bottles per 15,000 gallons.
6. Continue Brushing and Vacuuming, clean the filter to remove the dead algae from the filter media.
7. When the pool returns to a clear and algae free condition, return to normal operating mode.

Note: Black algae and mustard algae can leave stains behind on the pool surfaces. If the stains are present, maintain the chlorine residual at about 2 ppm and keep brushing the stains. If they do not lighten within two weeks, consult your pool professional.

Types of algae

  • Green Algae - Most common algae growth. Forms in green patches on pool and spa surfaces. Can be removed by brushing, but must be treated with chemicals.
  • Yellow or Mustard Algae - It creates a slimy layer that guards it from sanitizers. When brushed, yellow algae is removed easily but returns quickly. Yellow Algae can set in on any pool or spa. Chlorine may slow its growth, but will not completely kill this strain of Algae. An algaecide must be used to effectively kill and prevent this algae.
  • Black Algae - Algae with dark blue, black and green color. Grown in colonies as small dots. Forms a protective layer over itself visible mostly in white plaster.
  • Pink Algae - This pink slime is really a form of water mold and not algae. The condition looks and sounds worse than it is. The mold has the appearance of shredded tissue paper in the water. The primary cause is a soil bacteria that is harmless to humans.
Common causes of algae
  • Insufficient sanitizer. Make sure your chlorine level is not too low.
  • Possible chemical imbalance. Adjust your pH to the recommended range.
  • Circulation pattern of the pool. Adjusting the return jets can help minimize dead spots where circulation is poor.
  • Improperly operating pool equipment. Check your pump and filter for any problems.
  • Environmental issues related to the weather or the introduction of other chemicals like phosphates or organic waste such as perspiration or urine.