Top 10 Increase Water Hardness – Swimming Pool Balancers

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1. Clorox

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4 lb, Clorox Pool&Spa 12204CLX Calcium Hardness Increaser, White

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Clorox #ad - Power source Type: Manual. Ideal for plaster pools and soft water areas. For best results, use with the Clorox Pool app. Prevents pool surface damage. Prevents corrosion, etching, and staining. Increases low Total Hardness levels in swimming pool water.
BrandClorox #ad
ManufacturerClorox® Pool&Spa™ #ad
Height11.5 Inches
Length4.4 Inches
Weight4 Pounds
Width10 Inches
Part Number12204CLX
Model12204CLX

2. Puri Tech

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Puri Tech Pool Chemicals 20 lb Calcium Hardness Increaser Plus for Swimming Pools & Spas Increases Calcium Hardness Levels Prevents Staining on Surfaces

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Puri Tech #ad - Raises calcium in swimming pool water. Calcium hardness level prevents foaming, equipment and surface erosion and scaling. Dosage: 2, 000 gallons: 3 lbs to increase hardness 50ppm, 12.

5 lbs/100ppm, 000 gallons: 6. 25 lbs to increase hardness 50ppm, 12. 5 lbs/200ppm. 10, 000 gallons: 105 lbs to increase hardness 50ppm, 25 Lbs/100ppm, 25 Lbs/200ppm. Brand new packaging: all puri Tech Chemicals now come in resealable bags for easy storage! Active ingredients: Calcium Chloride. See package for instructions. 5, 000 gallons: 1. 5 lbs to increase hardness 50ppm, 3 Lbs/100ppm, 6. 25 lbs/100ppm, 50 Lbs/200ppm. 20, 6. 25 lbs/200ppm.
BrandPuri Tech #ad
ManufacturerPuri Tech #ad
Part NumberPCC
ModelPCC

3. HTH

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Hth Pool Balance Calcium Hardness Increase 67008

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HTH #ad - Hth calcium hardness increaser, 4 lbs. Low calcium hardness may cause the pool water to be corrosive, resulting in damage to pool surfaces and equipment. Compatible with Salt Systems. Prevents corrosion of metal & plaster surfaces. Raises calcium hardness levels.
BrandHTH #ad
ManufacturerHTH #ad
Height10 Inches
Length5.85 Inches
Weight4.3 Pounds
Width5.85 Inches
Part Number67008
Model67008

4. Puri Tech

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Puri Tech Pool Chemicals 25 lb Calcium Hardness Increaser Plus for Swimming Pools & Spas Increases Calcium Hardness Levels Prevents Staining on Surfaces

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Puri Tech #ad - Raises calcium in swimming pool water. Calcium hardness level prevents foaming, equipment and surface erosion and scaling. Brand new packaging: all puri Tech Chemicals now come in resealable bags for easy storage! Active ingredients: Calcium Chloride.

Dosage: 2, 25 lbs/200ppm. 5, 000 gallons: 1. 5 lbs to increase hardness 50ppm, 50 Lbs/200ppm. 20, 000 gallons: 3 lbs to increase hardness 50ppm, 000 gallons: 105 lbs to increase hardness 50ppm, 6. 25 lbs/100ppm, 3 lbs/100ppm, 000 gallons: 6. 25 lbs to increase hardness 50ppm, 12. 5 lbs/100ppm, 12. 5 lbs/200ppm. 10, 25 lbs/100ppm, 6. 25 lbs/200ppm. See package for instructions.
BrandPuri Tech #ad
ManufacturerPuri Tech #ad
Part NumberPCC
ModelPCC

5. LEISURE TIME

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Leisure Time CB Calcium Booster Balancer for Spas and Hot Tubs, 32 fl oz

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LEISURE TIME #ad - Features: prevents corrosion and foam; Part of Leisure Time's Simple Spa Care program. Compatibility: Compatible with chlorine, ozone, bromine, and biguanide sanitizers. Use: one ounce increases hardness 7 ppm in 500 gallons of water. Compatible with chlorine, bromine, ozone and biguanide sanitizers. Includes: one 32-oz bottle of Leisure Time Calcium Booster. One ounce increases hardness 7 ppm in 500 gallons of water. Prevents corrosion. Benefits: raises water hardness to maintain a level of hardness between 150-400 ppm.
BrandLEISURE TIME #ad
ManufacturerLeisure Time #ad
Height9.5 Inches
Length3.12 Inches
Weight2.58 Pounds
Width3.12 Inches
Part NumberCB
ModelCB

6. SpaGuard

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SpaGuard Spa Calcium Hardness Increaser, 12 Ounce

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SpaGuard #ad - Prevents corrosion of equipment due to low calcium hardness. Per 100 gallons raises calcium hardness 25ppm. 1 tbs. Prevents etching of plaster due to low calcium hardness.
BrandSpaGuard #ad
ManufacturerSpaGuard #ad
Weight0.75 Pounds
Part Number42257BIO
ModelBIO42257
WarrantyReturns are not accepted on opened or used items and are subject to a 20% restocking fee.

7. SpaChoice

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1-Quart, Spa Choice 472-3-3061 Increase Calcium Spa Chemical

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SpaChoice #ad - Low hardness will etch plaster and corrode spa equipment. Spa choice increase calcium is used to increase calcium hardness in spas and hot tubs in areas with low levels of hardness. The ideal hardness level is 200-400 ppm parts per million. Downloadable user guide Available Under Product Information: Technical Specifications.
BrandSpaChoice #ad
ManufacturerRobelle Industries #ad
Height10 Inches
Length3 Inches
Weight3 Pounds
Width3 Inches
Part Number472-3-3061
Model472-3-3061

8. Spa Essentials

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12-Ounce, Spa Essentials 32534000 Calcium Hardness Increaser Granules for Spas and Hot Tubs

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Spa Essentials #ad - Helps prevent corrosion Of Spa Equipment And Surfaces. No assembly Required. Increases calcium Hardness Level In Spa Water. Easy to Use.
BrandSpa Essentials #ad
ManufacturerRobelle Industries #ad
Height8 Inches
Length3 Inches
Weight0.75 Pounds
Width3 Inches
Part Number32534000
Model32534000
WarrantyReturns are not accepted on opened or used products and are subject to a 20% restocking fee

9. Rx Clear

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Rx Clear Calcium Plus | Granular Calcium Chloride | Raises Calcium in Swimming Pool Water | Hardness Increaser for Swimming Pools | Prevents Corrosion | 25 Lbs

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Rx Clear #ad - Also prevents etching, pitting, pool cover components, and delamination of concrete, gunite, shotcrete, railings, screws, ladders, plaster, and fiberglass pools. Water chemistry - one of the most important aspects of proper swimming pool care involves the maintenance of balanced water chemistry.

Dosage - the ideal range is 200 to 400 parts per million ppm. Be aware - do not add this product on the same day that either ph plus or alkalinity increaser has been added to the pool water. Per 10, 000 gallons will raise the hardness level approximately 50 ppm. When swimming pool chemicals are not at their ideal levels, the water can turn dull and cloudy, hoses, swimmers can be at risk of contracting illnesses and suffering from skin irritation, and pool or spa equipment, and surfaces can become damaged.

Add when water hardness levels drop below 150 ppm. Prevents corrosion - rx clear calcium plus helps stop corrosion of metal surfaces such as light fixtures, pool heater components, and metals in your pump or filter. Also helps prevent foaming of certain chemicals. Raising calcium hardness helps prevent corrosion of metal and plaster surfaces. The minimum calcium hardness level is 150 ppm. Trust rx clear as the most reliable leader in pool cleaner products and supplies. Do not pre dissolve this product.
BrandRx Clear #ad
ManufacturerRx Clear #ad

10. Pool Mate

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Pool Mate 1-2825 Calcium Increaser for Swimming Pools, 25-Pound

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Pool Mate #ad - Prevents the staining or etching of your pool's surface. Increases Water Hardness. Low calcium hardness level can cause corrosive water. Ideal calcium hardness range 200 - 400ppm.
BrandPool Mate #ad
ManufacturerRobelle Industries #ad
Height11 Inches
Length10.25 Inches
Weight25 Pounds
Width10.25 Inches
Part Number1-2825
Model1-2825