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From our technical experts

1kg Relax Total Alkalinity (TA) Raiser


  • Total Alkalinity Raiser
  • Powder for increasing Total Alkalinity
  • Available in 1kg, 5kg & 25kg


Total alkalinity is a measure of the total alkaline substances found in the pool water. For swimming pool purposes we usually determine the carbonate content of the water by measuring the level of calcium carbonate. Total Alkalinity, or TA, should usually be kept at 80 – 120 ppm, though in high alkalinity waters this is often hard to achieve without resulting in an abnormally low pH. Low Total Alkalinity: The results of a low TA may be one or more of the following: corrosion of metal parts, staining of the pool surfaces, green water, burning eyes and itchy skin or pH bounce (rapid fluctuations in pH).

  • Available in 1kg, 5kg & 25kg containers
  • Total Alkalinity: The measure of the water’s ability to resist pH change
  • Ideal range: 80-150mg/l (ppm)
  • This product is for increasing total alkalinity – Low Total Alkalinity in the pool will cause pH bounce, staining and increased corrosion

Application Instructions: Pre-dissolve the powder in a clean plastic container at a maximum rate of 100g of product per 10 litres (2.2 gallons) of clean water. Stir well to ensure that the powder is fully dissolved. Add the resulting solution to the pool whilst the pump(s) are turned ‘on’, preferably near to the water inlets to aid distribution. The total required amount of TA Raiser can be applied in one application unless metals are present in the pool water.

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Returns Policy

Your rights to return goods are protected under the EU Distance Selling Directive.

You are entitled to cancel your order and return the goods within 7 working days for a full refund not including the cost of delivery. Do this by contacting us by email or telephone and quoting the order number supplied to you. Your refund will be paid within 30 days. You are responsible for the cost and risk of loss or damage when returning the goods, so you should take out enough postal insurance to cover their value. This cancellation policy does not affect your rights when we are at fault - for example, if goods are faulty or incorrectly-described.

Exclusions: Bespoke items (made to measure items) are not included and cannot be returned. If a bespoke item is faulty then the product warranty /guarantee will take effect.

Any goods returned should be in saleable condition.

These terms apply to your order. We may change our terms and conditions at any time, so please do not assume that the same terms will apply in the future.

None of these terms affect your legal rights and these are not diminished in any way. If any term is held to be invalid under any applicable statute or rule of law, that term is automatically omitted from the terms to minimum extent necessary to comply with the law and without affecting the validity or enforceability of the remainder.

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