Total alkalinity should be maintained between 80 – 150mg/l (ppm).
Test the total alkalinity level of the hot tub water and if it is below 80mg/l (ppm) use Alkalinity Increaser to raise the level.
InSpire Alkalinity Increaser – 1kg
InSpire Alkalinity Increaser is used to raise the total alkalinity level in your hot tub.
Low total alkalinity causes spa water to be corrosive that may result in the staining of hot tub surfaces. Low total alkalinity may also cause ph to fluctuate when being adjusted.
£18.00
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