InSpire Hardness Increaser

InSpire Hardness Increaser is used to raise the calcium hardness levels in your hot tub water. Calcium hardness is the amount of dissolved calcium and magnesium in your hot tub water.

Original price was: £16.67.Current price is: £15.00.

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The ideal spa calcium hardness levels are between 100 – 200 mg/l (ppm), promoting ‘balanced’ water and protection of spa plant equipment. Test the calcium hardness level of the spa water and if it is below 100mg/l (ppm) use Hardness Increaser to raise the level.