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Total Alkalinity |
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Total Alkalinity Total alkalinity is a measurement of the waters ability to resist pH change. If the total alkalinity is low then the pH can fluctuate making it difficult to control and maintain at the ideal level. If the total alkalinity is high then the pH can be difficult to change and will keep rising. A high total alkalinity can also lead to the formation of a bicarbonate scale on pool surfaces, within pipework and in plantroom equipment.
Problems Associated with Incorrect Total Alkalinity
| Total alkalinity less than 80mg/l |
Total alkalinity more than 150mg/l |
- Corrosive water
- pH fluctuation
- Staining
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- Bicarbonate scale formation
- pH difficult to change
- Cloudy water
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If the total alkalinity of your pool water is below 80mg/l it should be increased using Blue Horizons TA Raiser, the table below indicates the dosage quantities required:
Blue Horizons Total Alkalinity Raiser Dose Rates Table
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Pool Volume
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To Increase Total Alkalinity By
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Cubic Metres
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Litres
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Gallons
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10mg/l
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25mg/l
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50mg/l
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4.55 M3
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4,545
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1,000
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81g
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203g
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405g
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11.36 M3
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11,364
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2,500
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203g
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508g
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1.01Kg
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22.73 M3
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22,727
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5,000
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405g
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1.01Kg
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2.02Kg
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45.45 M3
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45,455
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10,000
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810g
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2.02Kg
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4.05Kg
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68.18M3
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68,182
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15,000
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1.22Kg
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3.03Kg
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6.07Kg
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If the total alkalinity of your pool water is above 150mg/l then Blue Horizons TA Reducer can be used to lower it. This liquid product needs no pre-dissolving and is therefore easy to apply.
Blue Horizons TA Reducer Dose Rates Table
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Pool Volume
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To Reduce Total Alkalinity By
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Cubic Metres
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Litres
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Gallons
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10mg/l
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25mg/l
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50mg/l
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4.55 M3
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4,545
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1,000
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100ml
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250ml
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500ml
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11.36 M3
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11,364
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2,500
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250ml
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625ml
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1.25Ltr
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22.73 M3
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22,727
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5,000
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500ml
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1.25Ltr
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2.50Ltr
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45.45 M3
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45,455
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10,000
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1.00Ltr
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2.50Ltr
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5.00Ltr
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68.18M3
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68,182
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15,000
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1.50Ltr
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3.75Ltr
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7.50Ltr
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