The active ingredient in our pH increaser is Soda Ash (Sodium Carbonate). This product will quickly correct acidic water conditions in your pool or spa. It will slow the rapid dissipation of chlorine caused by acidic water, reduce eye irritation, reduce corrosion of pool equipment and reduce etching of plaster pool walls. Our pool pH increaser comes in granular form so it's very easy to use. As the level of your pool's pH increases into the ideal range, your pool water will become safer and more pleasant to swim in. 

  • CORRECTS acidic Pool & Spa water quickly
  • REDUCES irritation to eyes caused by acidity
  • SLOWS down the rapid dissipation of chlorine caused by acidic water
  • REDUCES corrosion of pool equipment and etching of plaster pool walls
  • 99.2% Soda Ash or Sodium Carbonate

Soda Ash is used to increase the alkalinity pH in swimming pools to ensure the pH level of the water is between 6.8 and 7.4. Low pH levels in a pool can be caused by rainwater and other foreign particles getting into pool and changing the chemical make-up of the water. Corrosion of metal accessories, burning of the nose and eyes, rapid chlorine reduction and itchy, dry skin and scalp can be signs of low pH levels in a pool. Low pH levels also reduce the sanitation of a pool. Regular testing and chemical treatment can help to maintain pH levels.


Adding soda ash at a ratio of 1 pound for every 10,000 gallons of pool water will raise the pH level by 0.3. To add it, dissolve soda ash in water in a bucket and then pour it into the pool. To ensure the material is fully dissolved and distributed throughout the water, add soda ash in the evening, after pool use is done for the day.

  • With the filter running, sprinkle 1 jug (250g) Soda Ash evenly over the pool surface.
  • Allow 1 - 2 hours for the water to circulate and then re-test the pH level.
  • The dosage should be repeated if the pH level is not within the ideal range of 6.8 – 7.4.

Dosage rates will vary depending on your pool's volume and current pH level. In general:

Pool Volume = Length x Width x Average Depth
Average Depth = (Shallowest Depth + Deepest Depth) / 2

For 50 000 litres - Use 500g
For 25 000 litres - Use 250g 
For 12 500 litres - Use 125g

Pool Chemicals Delivery is not available for East Malaysia (Sabah/Sarawak) addresses.

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Pool pH Increaser - Soda Ash (25kg/Bag Sodium Carbonate)

  • Product Code: SA0011
  • Availability: 3
  • RM220.00
  • RM147.00

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Tags: Soda Ash, Sodium Carbonate, Swimming Pool Chemicals, pH

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