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Definition / Cause Algae
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.
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Definition / Cause Black Algae
Forms in cracks and crevices on pool surfaces, especially plaster finishes. Known for protective coatings that make it impervious to normal chlorine levels.
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Description / Cause Chlorine Residual
The most common cause of increased chlorine demand is a high level of contaminants. |
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Definition / Cause Cloudy Water
Hazy, murky appearance. Caused by poor filtration, inadequate circulation, water balance, low sanitizer levels and/or lack of routine oxidation.
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Definition / Cause Foam
Foam is caused by elevated levels of algicide or a foaming algicide in pools with jetted returns, attached spas or water features
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Definiton / Cause Scale
Scale formation is caused by high calcium hardness.
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Definition / Cause Staining
Discoloration of pool equipment and surfaces caused by contamination, sunlight and metals in pool water.
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