Relax Spa Hot Tub Alkalinity Plus – 1kg

Relax Spa Hot Tub Alkalinity Plus – 1kg – Rapid dissolving granules to increase the Total Alkalinity levels in your hot tub.

£9.99 inc VAT

In stock

Product reference: 13845 Category:


Relax Spa Hot Tub Alkalinity Plus – 1kg
Relax Spa Hot Tub Alkalinity Plus – 1kg – Rapid dissolving granules to increase the Total Alkalinity levels in your hot tub.
Why? – Total Alkalinity Plus is used to increase the Alkalinity of your spa water. Spa water tends to lose Total Alkalinity (TA), within days of you filling your spa with fresh water. Low T.A. will result in damage to your spa equipment, pH fluctuations and bather discomfort, ideal levels are between 100ppm & 140ppm.
When? – Test the Alkalinity of your spa water at least twice per week, more often if you are located in a soft-water area.
1 – Pre-dissolve the required amount of Total Alkalinity Plus in a clean, plastic bucket filled with warm water. Stir the solution until the granules are fully dissolved.
2 – Ensure that your spa circulation pump is turned on before slowly pouring the solution directly onto your spa water surface.
3 – Continue to run your spa circulation pump for at least 15 minutes.
4 – Re-test your spa water and repeat dosage until a T.A. reading of between 100ppm & 140ppm is achieved.
5 – Allow 15 minutes before using your spa.
How Much? – As a general guide, a heaped teaspoon holds 8g of granules.
Spa water volume –
1000 litres dose 16g to raise the T.A. by 10ppm
1500 litres dose 24g to raise the T.A. by 10ppm
2000 litres dose 32g to raise the T.A. by 10ppm

Warranty & Returns

This Product has a 1 year warranty.

Should you require any further information, please email where we will respond to your request quickly.

Stock & Delivery

This product is in stock at our warehouse and is ready for Express or Economy Delivery Service.

Delivery – Mainland UK
Orders placed before 2pm Monday to Friday we aim to dispatch on the same day, after 2pm will be the following working day. This does not include Bank Holidays, which are classed as non-working days. Should you require a Saturday delivery or have any other delivery enquiries, please email who will respond to your request quickly.

Try to include your mobile phone number in the checkout area so that our delivery drivers can contact you should they need any further assistance or clarification in delivering your order.

Please ensure you leave detailed information if your delivery address is hard to find or a new housing development. If you know there is a possibility of missing the delivery, you can at the checkout stage leave instructions for the delivery driver to leave without signature and place your goods with a neighbour or in a discreet place out of sight for your later retrieval.

Please note some areas including Scotland(post codes AB, FK, IV, KW, PA, PH, HS, KA, ZE, TR, DD, PH, PA, KY, AB, DD, KW, IV, HS), Isle of Wight, Isle of Man, will need extra carriage. We no longer ship to Jersey, Guernsey or Northern Ireland.


If you are unable to thoroughly check your delivery upon receipt, sign for it as UNCHECKED. If the package is damaged in any way, no matter how small, please sign for it as DAMAGED. We CANNOT CLAIM from our carriers for any damaged items that have not been signed for as UNCHECKED or DAMAGED.

If you sign for a delivery as OK, which you later find to be damaged, our carriers WILL NOT accept liability and you may be charged for the damaged items, in this case a delivery charge for replacement items WILL be made.