Hot Tub Water Balance Chemicals
All prices include VAT and we offer FREE delivery for orders over £50.
| Spa PH Plus | Description | Code: CH014 |
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Granules 500g These pH Plus granules are used to increase the pH of your spa water. It should be added to your water if your test kit result indicates that the pH is below 7.2.
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£5 |
| Spa PH Plus | Description | Code: CH015 |
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Granules 1kg As above but twice the quantity, providing better value for money. |
£7 |
| Spa PH Minus | Description | Code: CH016 |
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750g These pH Minus granules are used to reduce the pH level of your spa water. It should be used when the pH goes above 7.6, it can also reduce Total Alkalinity of your spa water. Note: If pH becomes too high (more alkaline) then the effectiveness of chlorine based sanitisers are significantly reduced. |
£5 |
| Spa PH Minus | Description | Code: CH017 |
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1.5kg As above but twice the quantity, providing better value for money. |
£7 |
| Spa Total Alkalinity Plus | Description | Code: CH018 |
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1kg Total Alkalinity plus is an essential aid to ensure stable water balance and pH. It raises the total alkalinity, making the maintenance of a stable pH much easier and prevents wide fluctuations during pH adjustment by acting as a buffer. |
£7 |
| Spa Total Hardness Plus | Description | Code: CH019 |
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1kg Use to increase calcium hardness levels. |
£8 |
| Spa/Pool Total PH Plus | Description | Code: CH037 |
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5 kg Use to increase the pH of pool water |
£15 |
| Spa/Pool PH Minus | Description | Code: CH038 |
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5kg Use to lower the pH pool water. |
£15 |
Total Alkalinity
Total alkalinity is a measurement of the waters ability to resist changes in pH levels. 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 spa surfaces, within pipework and support equipment.
If the total alkalinity of your spa water is below 80mg per litre of water then it should be increased using AquaSPArkle Spa T.A. Plus. If the total alkalinity of your spa water is above 150mg/l then AquaSPArkle Spa pH Minus can be used to lower it.
pH
pH is a measure of how acidic or how alkaline the water is, and not to be confused with total alkalinity as described above.
The pH scale goes from 0 to 14, with 0 being very acidic and 14 very alkaline, a pH of 7 is neutral. The pH of water in a hot tub spas should be maintained between 7.2 and 7.6, this being slightly alkaline, it protects the hot tubs components and is more comfortable for bathers.
Aqua Spas provide water treatment products at the lowest possible prices for cheap and efficient hot tub water maintenance.













