BioGuard Lo N Slo

BioGuard Lo N Slo


Product Features:

  • Effectively and gradually lowers pH and Total Alkalinity
  • For use in all pool types
  • 8 lb bottle



  • Lowers pH
  • Reduces total alkalinity
  • Safer to store, transport and handle than liquid acid
  • Quick dissolving

What does it do:

Lo ‘N Slo® is used to reduce pH and total alkalinity.

When/Why does ALEX recommend:

For high pH when Lo ‘N Slo is selected as the pH adjuster. Note: The input pH may not be high. ALEX calculates the impact other product recommendations are going to have on the pH and in most cases, makes a final adjustment for an ideal pH.

For high total alkalinity when Lo ‘N Slo is selected as the pH adjuster.

As part of the Optimizer PLUS application.

Application instructions:

  1. Balance Total Alkalinity to 125 to 150 ppm, or 80 – 150 ppm for pools using Mineral Springs or chlorine generators.
  2. If pH is above 7.6, apply Lo N Slo as determined by the acid demand chart on the product label.
  3. Apply by broadcasting product into the deep end with the pump running. Add when the pool is not in use.
  4. Circulate for 2 hours and retest pH.

Product Notes:

  • Never add more than 1 lbs. of Lo N Slo per 10,000 gallons at one time.
  • Newly plastered pools may require frequent treatments for the first few weeks.
  • Do not add near metal fittings nor allow pH to drop below 7.2.
  • Do not allow undissolved lumps to remain on the pool bottom. Break up with brush.

NOTE: Avoid physical contact with product. Follow safety information on label instructions. Store in a cool, dry place. Keep out of the reach of children.

Additional information

Weight 8 oz

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