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Hardness Crystals (Calcium Chloride)

Sale price $37.00 Regular price $37.50

Tax included. Shipping calculated at checkout.

Calcium Chloride Flake >74%.

Increases the hardness of water. Hardness, along with pH, alkalinity and temperature are required to be balanced in order to prevent corrosion or scale formation.

Dosage: 14g per 1000 litres of water for an increase of 10mg/litre. This product generates heat when added to water so don’t try and premix it in a bucket of water, instead tip the required amount straight into the pool with the filter pump running. Results can be seen from testing after 24 to 48 hours (leave the filter pump running.

Clean up any spilt product by sweeping up and disposing of or by washing away with plenty of water. Any product left in the open will attract moisture and become oil-like and very slippery.

Safety data sheet can be found here:

  (Bag design may differ from image shown depending on current supplier.)

This product is not currently available for delivery to North Island locations. South Island delivery will coincide with our monthly circuit. Email us for further details.