pH & Alkalinity Reducer – Sodium Bisulphate

The pH level of the water is one part that can have a significant impact on how you enjoy your time in the spa. If too acidic, it will make for an unpleasant environment and if not enough alkaline to balance out acids from skin cells there may be some corrosion at work beneath the surface.

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SKU: STG-pH-Alkalinity-Reducer Category:


1. Use a good quality test kit to determine the pH and/or the Total Alkalinity reading.
2. To reduce pH readings add 10 g per 1000 ltrs of Spa and Hot Tub water sprinkling product directly to the water with circulation on. This application will lower the pH by approximately 0.2
3. Only make one addition of pH and Alkalinity Reducer at a time and always re-test the water, should a further addition be required please follow step 1 again.
4. To reduce Total Alkalinity add 15 g per 1000 ltrs of Spa and Hot Tub water with circulation on. Add product to the deepest point of the Spa / Hot Tub in one application. This application will lower the Total Alkalinity by approximately 10 – 20 ppm (mg/l)
5. Always re-test the water after each application.

• Always ensure bathers are out of the water when adding chemicals.
• Never mix with any other chemicals including cleaning products, weed killers and chlorine products, as a dangerous reaction may occur.
• Always handle products in a well-ventilated area.
• Always wash hands thoroughly after handling chemicals.
• Store in a cool, dry, well ventilated, secure place. Ensure chemicals do not become damp in storage.
• Instructions and dosages given are a guide to most effective use.

• This container must not be used or contaminated with any other materials.

Additional information

Weight N/A

320 x 1.5kg, 65 x 7kg, 16 x 25kg


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