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Pool Pro
Hardness Raiser
Calcium hardness raiser that protects surfaces and equipment from soft water
Order in
Not a stocked line — we order it in for you and confirm timing when you buy.
$17.95/ kg
Product information
A calcium-based additive that lifts the calcium hardness of your pool water. Water that is too soft can become corrosive and attack surfaces, fittings and equipment, so keeping hardness in range protects your pool. Use it when a test shows calcium hardness is low. Broadcast it over the water with the pump running and retest once it has dissolved and circulated.