The total alkalinity should be in the range of 90 - 150 ppm (parts per million). A spa or hot tub with low total alkalinity would require constant adjustment of the pH.
To raise total alkalinity, add sodium bicarbonate in small quantities.
To lower the total alkalinity, add acid (Dry Acid – Sodium Bisulphate) in small quantities.
BioLab Aquality 750gm
- Helps slowly lower PH and decrease total alkalinity
- Helps improve chlorine efficiency
- Prevents corrosion
- Easily prevent scale build-up and eye irritation
- Test in one hour.
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