Calcium Hardness Increaser – Calcium Chloride Flakes

If you’re looking to prolong the life of your spa and hot tub, then this product is for you. We know that it can be difficult balancing water levels without sufficient calcium in the system so we made sure to include enough calcium ions into our formula!

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SKU: Calcium-Hardness Category:


1. Take a CALCIUM HARDNESS reading with a quality test kit. The correct reading is a minimum of 250PPM (mg/l)
2. Dose at a rate of 10g of Calcium Hardness Increaser to 1,000 litres (220 gallons) of water. Each dose will raise Calcium Hardness by approximately 10PPM (mg/l) and add no more than 50g at any one time.
3. With the circulation running, sprinkle the product directly to the water; DO NOT PRE-DISSOLVE
4. Bathing may recommence when all product has been dissolved.

• 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

480 x 1kg, 96 x 5kg, 16 x 25kg


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