Troubleshooting
Below are common problems you’ll find in pools and recommended solutions.
Please note: In all cases, taking a water sample to your BioGuard® dealer for analysis is the best solution.
Please note: In all cases, taking a water sample to your BioGuard® dealer for analysis is the best solution.
Algae

Definition / Cause
A common “green” algae that can be free floating or wall-clinging. Ranges in severity from patches on walls and bottoms to entire pools. Can clog filters and create surface damage if left unchecked.
Solution
-
Banish®: Kills all types of swimming pool algae
Black Algae

Definition / Cause
Forms in cracks and crevices on pool surfaces, especially plaster finishes. Known for protective coatings that make it impervious to normal chlorine levels.
Solution
- Banish®: Kills all types of swimming pool algae
- Spot Kill®: Formulated to kill black algae on walls.
- Spot Kill WP: Only used on white plaster pools.
Chlorine Residual

Description / Cause
The most common cause of increased chlorine demand is a high level of contaminants.
Solution
- Burn Out Extreme® or Burn Out 35: Corrects chlorine levels
- Take a water sample to your BioGuard Dealer and let them perform a test to help
Cloudy Water

Definition / Cause
Hazy, murky appearance. Caused by poor filtration, inadequate circulation, water balance, low sanitizer levels and/or lack of routine oxidation.
Solution
- Lo ‘N Slo®: Corrects high pH
- Strip Kwik® or NEW improved Kleen It®: Cleans dirty filter media
- Burn Out Extreme® or Burn Out 35: Boosts sanitizer levels
Foam

Definition / CauseFoam is caused by elevated levels of algicide or a foaming algicide in pools with jetted returns, attached spas or water features. Foaming can also be caused by a foreign contaminant such as soap or oil entering the pool. Foam should dissipate over time, but the use of AntiFoam will help clear the foam much more rapidly.
Solution
- Anti-Foam: Eliminates foam quickly
- To prevent foam from occurring due to high algicide levels, skip your next scheduled addition of Back Up® or switch to non-foaming Algae All 60®
Mustard (yellow) Algae

Definition / Cause
A chlorine-resistant form of green algae. Often resembles dirt or sand on bottom or sides of pool. It can be brushed away very easily, but returns quickly. Although it can create a large chlorine demand, it has been known to survive in high levels of chlorine.
Solution
- Banish®: Kills all types of swimming pool algae
Scale

Definiton / Cause
Scale formation is caused by high calcium hardness.
Solution
- Scale Inhibitor: Eliminates scale discoloration. Helps prevent scale from forming on pool surfaces and damaging the equipment
Staining

Definition / Cause
Discoloration of pool equipment and surfaces caused by contamination, sunlight and metals in pool water.
Solution
- Stain Remover: Removes most stains from pool surfaces and returns all metals to pool water
- Pool Magnet® Plus:Ties up metals in pool water
- Sparkle-Up®: Aids physical removal of metals through filter
