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Problem |
Possible Cause |
Possible Reason |
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1. Cloudy water |
Build up of dirt and pollution or suspended particles
Start of algae growth
Over stabilisation |
Insufficient Chlorine or ineffective pool filtration
Poor filtration
Over stabilisation. Chlorine ineffective |
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2. Unpleasant water. Sore eyes / throat,
Itching skin |
High combined Chlorines
Water too acid or alkaline |
Free Chlorine levels too low
pH levels too low or too high |
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3. Chlorine level difficult to maintain |
Sunlight destroys Chlorine
Build up of pollutants
High water temperature |
Chlorine not stabilised
Insufficient Chlorination
Organisms multiply more rapidly |
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4. No Chlorine reading |
Chlorine level may be too high
Chlorine level may be too low |
High Chlorine content bleaches reagent in test tablet
Insufficient Chlorine |
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5. pH too low |
Low pH of local mains water
Use of acidic chlorine donors |
Insufficient pH increaser being added |
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6. pH too High |
High pH of local mains water
Salts leached from concrete pools |
Insufficient pH Reducer being added
Self correction period of time |
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7. pH locked |
Too high levels of bicarbonate |
Topping up from mains water can increase alkalinity in hard water areas |
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8. Low Alkalinity |
Bicarbonates reduced by dilution particularly
in soft water area |
Mains water has too low level of bicarbonates |
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9. Pool water feels slimy |
Algae growing |
Insufficient chlorination and pool wall brushing |
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10. Dirt on the pool wall at waterline |
Build up of fat from sun oils or cosmetics |
Irregular cleaning of surfaces |
