Robelle 25-Pounds Premium Pool Calcium Up, Calcium Hardness Increaser

★★★★★ 4.3 113 reviews

$48.62
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$48.62
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Free shipping Free 30-day returns

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Product details

Management number 214843392 Release Date 2026/04/12 List Price $19.45 Model Number 214843392
Category

This is a dry granular product that increases the total hardness in pool water to the recommended range.Test for calcium hardness with a reliable test kit. The desired range for calcium hardness is as follows: Vinyl Pools: 200-300 ppm, Tile and Exposed Aggregate Pools: 200-400 ppm, Marcite, Fiberglass or Painted Pools: 250-400 ppm. If the calcium hardness tests less than the desired range, add this product according to the included chart. Place this product into a plastic bucket already filled with swimming pool water. Do this in a ration of up to 2 pounds of product per approximate 5-gallon bucket of water. Slowly pour this solution around the perimeter of the swimming pool while the circulating system is operating. In a 10,000 gallon pool, do not add more than 10 pounds of this product per 2 hour period.

  • Calcium chloride for pools
  • Rapidly increases total hardness
  • Helps prevent corrosion or etching of pools
  • Ideal calcium hardness range 200 - 400 ppm
  • 8 ounces raises calcium hardness level 10 ppm per 5,000 gallons of water
  • Prevents the staining or etching of your pool's surface
  • Low calcium hardness level can cause water issues
UPC 034261282592
Item Form Granular
Brand Name Robelle
Unit Count 400.0 Ounce
Item Weight 25 Pounds
Manufacturer Robelle
Item Type Name for Pools
Product Benefits Calcium Increaser
Included Components Pool Calcium Increaser
Global Trade Identification Number 00034261282592

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4.3 out of 5
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113 ratings | 46 reviews
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