| SYMPTOM |
PROBABLE CAUSE |
UNDERLYING REASON |
TO RECTIFY |
| Cloudy water |
Build up of dirt and bather pollution |
Insufficient chlorine or poor filtration |
Backwash filter then super chlorinate to 10mg/l of free chlorine.
Add clarifier to polish water |
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or |
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Air particles reflect light giving cloudy appearance in pool |
Air being drawn into system |
Check all joints on suction side of pump.
Check air release valves, water level should be checked |
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or |
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Start of algae growth |
Insufficient levels of chlorine |
Super-chlorinate. after 24hours backwash filter.
Maintain chlorine level at 1.5mg/l
Prevent recurrence of algae growth |
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or |
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Chlorine ineffective |
Over stabilisation. (If using isocyanurates – dichlor or trichlor) |
Dilute pool water and super-chlorinate |
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or |
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Ineffective filtration |
Filter blocked or filter media needs renewing |
Check sand filter cartridge, or DE Media |
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or |
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Suspended particles |
Precipitation of salts due to high pH or high alkalinity |
Correct pH and /or alkalinity |
