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Robarb Spa Calcium Hardness Up

Robarb Spa Calcium Hardness Up
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$4.99
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Robarb's Spa Calcium Hardness Up is designed to raise your spas water hardness, which prevents damage to spa equipment from corrosion, as well as increasing your spas life. Spa Calcium Hardness Up also raises your water hardness at a manageable rate, so your spas water doesn't become too hard, creating scale build-up. This treatment is compatible with chlorine, bromine, ozone, and biguanide sanitizing systems.
Dosage

1 oz. per 500 gallons increases hardness by 7 ppm.

Ingredients

A concentrated blend of calcium hardness increasing chemicals.

Product Use

Use this product to prevent corrosion in your spa by raising the calcium hardness to the proper level.


Directions

  1. Determine amount of Calcium Hardness Up to be added using a hardness test kit.
  2. Pour proper amount into water with equipment turned on.
  3. Run filter for 1-2 hours.
  4. Water may be re-tested in 20 minutes.


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