| Algae Growth |
Sunlight dissipating disinfectant
High cyanuric acid level |
Ensure disinfectant level adequate; Use
algicide
Dilute to reduce cyanuric acid level |
| Alkalinity Low |
|
Raise with sodium bicarbonate |
| Brown Staining |
Iron in water, corrosion of plant |
Check water balance & adjust and/or Brown
Water; Use flocculent and sequestrant |
| Calcium Hardness Too High |
Build up of hardness salts |
Dilute the pool |
| Calcium Hardness Too Low |
Soft water supply |
Raise to 200 mg/l and maintain with calcium
chloride |
Chlorine too High
Bleaching of DPD Tablet |
Over Chlorination Dosing system fault |
Use Chlorine Reducer or Dilute Check dosing
system |
| Chlorine Too Low |
Under Chlorination
Dosing System Fault
Direct Sunlight |
Check dosing system & for blocked chlorine
injectors
Use algaecide if algae present |
| Cloudy Water |
Heavy bathing load; Inadequate disinfection;
high cyanuric acid level; Problem with filters
|
Check disinfection & combined chlorine;
Dilute pool as required; Check filters, backwash
and use flocculant. |
| Green Staining |
Copper in water precipitating |
Test for copper; Check water balance &
adjust; Use flocculant & sequestrant. |
| Green Water |
Algae
High Cyanuric Acid Level |
Check disinfectant level; use algaecide Check
& dilute as required |
| pH too Low |
Acidic product being used
Acid detergent cleaner used |
Add pH plus (sodium carbonate) |
| pH too High |
Alkaline product being used Alkaline detergent
cleaner used |
Add acid (e.g. Sodium Bisulphate or Hydrochloric
Acid) to reduce |
| pH Unstable |
Low alkalinity |
Check & raise with Sodium Bicarbonate |
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