Robelle Calcium Hardness Increaser 8 Lbs
Robelle Calcium Hardness Increaser 8 Lbs
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Robelle

Robelle Calcium Hardness Increaser 8 Lbs

|3 ratings
Robelle Calcium Hardness Increaser 8 LbsRobelle Calcium Hardness Increaser for Swimming Pools
Count:1-Pack

Key item features

  • Hardness Elevation: This 8 lb Robelle Calcium Hardness Increaser effectively raises the water hardness levels in pools.
  • Corrosion Prevention: It actively prevents corrosive water conditions that can arise from low calcium hardness.
  • Surface Protection: The product safeguards your pool's surface, preventing issues like staining or etching.
  • Optimal Range: It is specifically designed for use when calcium hardness levels fall below the recommended range of 200-400 ppm.
  • Equipment Safeguard: By increasing hardness, it helps to prevent "soft water" from corroding pool equipment and etching pool plaster.
  • Stain Deterrent: Utilizing this increaser can help to avoid metallic stains that can occur due to insufficient calcium hardness.
  • Dosage Guidance: To increase hardness by approximately 50 ppm, 6.25 lbs of the product should be added per 10,000 gallons of pool water.
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4.7 out of 5 stars
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Showing 1-3 of 3 reviews

Apr 7, 2026
Gail
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Count: 1-Pack
Sold and shipped bySplash Super Center
5 out of 5 stars review

Verified Purchase

Happy with this purchase

Received quickly. Performed as expected. Happy with this purchase

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Helpful?7I67YC157DGR51057065
Dec 7, 2023
Tiffany
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Size: 8 lb. Bag
Sold bySplash Super Center
5 out of 5 stars review

Verified Purchase

Great product

Easy to use good instructions, sturdy bag and increased my calcium hardness like it was supposed to. Will buy again.

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Helpful?7I67YC157DGR51057065
Nov 30, 2024
mark
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Count: 1-Pack
Sold and shipped byBigDealDan
4 out of 5 stars review

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all good

best price

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Helpful?7I67YC157DGR51057065