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BioGuard Banish® algicide when used directed, is a highly effective, patented, non-staining algicide that kills and controls algae in swimming pools. It is especially recommended for killing and controlling green, blue-green (frequently called black or spot algae) and mustard algae growths. BioGuard Banish algicide can be used as a remedy for visible algae or to prevent algae from occurring. Banish is formulated for use in chlorine or bromine sanitized swimming pools of all surface and filter types.

  • Highly effective pool algae destroyer & preventative
  • Fast-acting formula produces results in 24 hours
  • Patented non-staining, non-foaming formula
  • Kills & prevents green, mustard & black algae
  • Works in chlorine & bromine pools
  • Does not affect pH  -  so pH adjustments are unnecessary after treatment
  • You can shock while using Banish, so there are fewer steps than when using other copper-based algicides
  • Suitable for use with the BioLab UV System
  • For all pool types
  • Use as needed
Product Info

Available sizes: 1 quart

  • 3.3% copper
  • pH  =  2.4
How To Use

For maintenance:

Initially apply 8 oz. per 10,000 gallons. Thereafter, add 1.5 oz. per 10,000 gallons or add 3 oz. every other week. Add more often after heavy rain, frequent backwashing, or partial drain and refill.

For treatment of visible algae:

  1. Add 1 lb of BurnOut 73 per 16,500 gallons or 1 lb of Smart Shock per 12,000 gallons. Add these products according to their label instructions.
  2. Circulate 1 hour to distribute product throughout the pool.
  3. With pump and filter running, add 16 oz of Banish per 10,000 gallons directly into pool water in area of heaviest growth.
  4. Circulate 24 hours.
  5. Do not swim until sanitizer residual has returned to the ideal range.
  6. Brush pool surfaces.
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