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Puri Tech Powder Pool Chemicals 25 lb Calcium Hardness Increaser Plus for Swimming Pools & Spas
Key item features
- High-Quality Additive: The Puri Tech Pool Chemicals 25 lb Calcium Hardness Increaser Plus is designed to increase calcium hardness levels in swimming pools and spas.
- Prevents Damage: Helps prevent corrosion, scaling, and surface staining by maintaining proper calcium hardness levels.
- Effective Formula: Formulated with a powerful blend of chemicals to effectively increase calcium hardness levels in pool water.
- Easy Application: Simply add the product to your pool water according to the recommended dosage and allow it to dissolve completely before testing the water again.
- Versatile Use: Compatible with most pool chemicals and suitable for various pool types and surfaces.
- Ample Supply: Comes in a convenient 25 lb container, providing enough supply for multiple applications.
- Dosage Guidelines: Dosage varies based on pool size; for example, 6.25 lbs increases hardness by 50ppm in 10,000 gallons of water.
- Active Ingredient: Contains Calcium Chloride as the active ingredient to effectively raise calcium levels.
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Specs
- Chemical standard typeCalcium Hardness Increaser
- BrandPuri Tech
- Pool chemical typePool Water Balancers
- FormPowder
- Rec. useSwimming Pool
- Size25 lbs
Current price is USD$43.99
Price when purchased online
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Arrives by Sat, Jun 20
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Sold and shipped by Backyard & Pool Superstore|Pro Seller
4.4342431761786605 stars out of 5, based on 1612 seller reviews(4.4)1612 seller reviews
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About this item
Product details
Raises calcium level in swimming pool water.Calcium Hardness level prevents foaming, equipment and surface erosion and scaling.Dosage:2,000 Gallons: 1.5 Lbs to increase hardness 50ppm, 3 Lbs/100ppm, 6.25 Lbs/200ppm5,000 Gallons: 3 Lbs to increase hardness 50ppm, 6.25 Lbs/100ppm, 12.5 Lbs/200ppm10,000 Gallons: 6.25 Lbs to increase hardness 50ppm, 12.5 Lbs/100ppm, 25 Lbs/200ppm20,000 Gallons: 10.5 Lbs to increase hardness 50ppm, 25 Lbs/100ppm, 50 Lbs/200ppmActive Ingredients:Calcium Chloride
- The Puri Tech Pool Chemicals 25 lb Calcium Hardness Increaser Plus is a high-quality chemical additive that is designed to increase the calcium hardness levels in your swimming pool or spa. This product is ideal for pool owners who have low calcium hardness levels in their water, which can cause a number of issues such as corrosion, scaling, and surface staining.
- The Calcium Hardness Increaser Plus is formulated with a powerful blend of chemicals that effectively increases the calcium hardness levels in your pool water. This helps to prevent corrosion of metal surfaces, reduce the risk of scaling, and prevent unsightly surface stains.
- Using the Calcium Hardness Increaser Plus is easy and straightforward. Simply add the product to your pool water according to the recommended dosage, and allow it to dissolve completely before testing the water again. The product is compatible with most pool chemicals and can be used with a variety of pool types and surfaces.
- The Puri Tech Pool Chemicals Calcium Hardness Increaser Plus comes in a convenient 25 lb container, providing ample supply for multiple applications. This product is an essential addition to your pool maintenance routine, ensuring that your pool water is healthy, balanced, and free of unsightly stains.
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Specifications
Chemical standard type
Calcium Hardness Increaser
Brand
Puri Tech
Pool chemical type
Pool Water Balancers
Form
Powder
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warnings
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Customer ratings & reviews
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Showing 1-3 of 8 reviews
Jan 8, 2026
Michael
5 out of 5 stars review
Verified Purchase
A good product for pools to get your calcium work needs to be.
Helpful?5C2HTLYU2HXU266333106
Sep 8, 2024
customer
5 out of 5 stars review
Verified Purchase
As described. Well-packaged. Good price.
As described. Well-packaged. Good price.
Helpful?5C2HTLYU2HXU266333106
Mar 24, 2025
anonymous
5 out of 5 stars review
Verified Purchase
Pool calcium
This chemical dissolves easily
Helpful?5C2HTLYU2HXU266333106
