Pool Master Water Hardener

from: $12.90

Part Number: Assorted

Pool Master Water Hardener is used to raise the water hardness level to help prevent the corrosion of pump and heater parts. It also prevents etching and staining of plaster and concrete finishes.

Use in areas where the presence of Calcium and Magnesium Salts are low (soft water areas). Maintaining good calcium levels is a part of overall water balance.


We regret to inform you that we are unable to process online purchase orders due to the Covid-19 shutdown of non essential businesses in New Zealand.

For all orders and enquiries please email info@paramountpools.co.nz.

We will endeavour to fulfil your request as soon as we are back operating. In the meantime we hope that you and your families stay safe and healthy. From the staff and management of Paramount Pools.


Spa Pool & Hot Tub Dose Rate: Add 14 grams per 1,000L for an increase of 10ppm.
Swimming Pools Dose Rate: Add at a rate of 145 grams per 10,000L for an increase of 10ppm.
Active Constituent: Calcium Chloride
Note: 25kg is a Bag, not a plastic container.


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