Spa Hardness Plus 1kg

AquaSPArkle Spa Hardness Plus is an effective product used for increasing calcium hardness levels within your spa water. Calcium hardness levels should be maintained within the recommended range of 100 - 200mg/l (ppm) to ensure that the spa and spa equipment is protected.

Availability: In stock

Product Name Price Qty
Spa Hardness Plus 1kg

Ideal Range: 100 – 200mg/l (ppm)


  1. Before applying this product it should be pre-dissolved in a clean plastic container at a maximum rate of 10g per 0.2 gallons (1ltr) of clean cold water. Stir well to ensure the product is fully dissolved. Repeat application to achieve the total dose required – see table below for dose rates. It is recommended that the total treatment is split into three equal applications with a minimum of 1 hour between each.
  2. After pre-dissolving add the resulting solution to the spa with the filtration system in operation. 
  3. Following the application the spa water may become temporarily cloudy so keep the filtration pump running continuously until it clears. 
  4. After treatment, check the pH level and if necessary adjust to the ideal range of 7.2 – 7.6.
Manufacturer AquaSparkle
Size 1kg
Use Hot Tub, Spa

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