The Best Calcium Swimming Pool Balancers of 2023

Cruelty-Free

Sulfate-Free

Paraben-Free

Gluten-Free

Soy-Free

Phthalate-Free

Fragrance-Free

Vegan

Increases low Total Hardness levels in swimming pool water

Prevents corrosion, etching, and staining

Prevents pool surface damage

Ideal for plaster pools and soft water areas

For best results, use with the Clorox Pool app

Power Source Type: Manual

BENEFITS: Ensures that your swimming pool has a balanced calcium hardness so you can enjoy splashing in the water all season long in healthy water

USE: Apply to pool following instructions for easy DIY pool care; For best results, use with other HTH pool care products

COMPATIBILITY: Great for vinyl-lined pools and saltwater systems

FEATURES: Raises calcium hardness; Reduces corrosiveness of water with low calcium; Avoid damage to pool surfaces and equipment; Resealable bag

INCLUDES: One 4-lb container of Calcium Hardness Up granules for your swimming pool water

Increases Water Hardness

Low calcium hardness level can cause corrosive water

Prevents the staining or etching of your pool's surface

Ideal Calcium Hardness range 200 - 400ppm

Calcium Chloride Anhydrous Powder Increases Total Hardness of Pool Water

Used to Prevent Corrosion in Pools & Hot Tubs

Great Value: 1 Gallon of Calcium Chloride Powder

Lab-Tested & Certified

Manufactured in the USA

Brings soft pool water to a normal calcium hardness level

Helps prevent corrosion, etching, and pitting of concrete surfaces as well as preventing the damage to pool and equipment caused by soft water

Scatter over the surface for quick and easy dissolving

1.25 lbs. per 10,000 gallons will raise hardness 10 ppm

Keeps pool water in the ideal range of 200 - 400 ppm

BENEFITS: Protects your pool from corrosion that can result from low calcium hardness so you can enjoy splashing in the water all season long in healthy water

USE: Apply to skimmer or directly to pool for easy DIY pool care; For best results, use with other HTH pool care products

COMPATIBILITY: Great for all types of pools, including vinyl-lined pools and saltwater systems

FEATURES: Raises calcium hardness levels; avoids damage to pool and equipment; Pre-measured; Water-soluble

INCLUDES: One 4-lb pouch of eight pods of Calcium Hardness Up pool care chemicals for your swimming pool water

BENEFITS: Raises spa water to the recommended level of calcium hardness to prevent corrosion

USE: 1 lb per 10,000 gallons to raise calcium hardness by 10 ppm; Maintain levels between 180-250 ppm for vinyl pools and 200-275 ppm for plaster pools

COMPATIBILITY: Works with chlorine and bromine sanitized pools

FEATURES: Chlorine free; Concentrated formula

INCLUDES: One 3.5-lb container of Baquacil Calcium Hardness Increaser

CALCIUM PLUS - Use Rx Clear Swimming Pool Calcium Booster when the calcium hardness reading in your pool drops below 150ppm. Raising calcium hardness helps prevent corrosion of metal and plaster surfaces. Also helps prevent foaming of certain chemicals.

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. Add when water hardness levels drop below 150 ppm. Spread the product over the surface of the water while the pump is running. Do not pre dissolve this product.

PREVENTS CORROSION - Rx Clear Calcium Plus helps stop corrosion of metal surfaces such as light fixtures, railings, ladders, screws, pool cover components, pool heater components, and metals in your pump or filter. Also prevents etching, pitting, and delamination of concrete, plaster, gunite, shotcrete, and fiberglass pools.

WATER CHEMISTRY - One of the most important aspects of proper swimming pool care involves the maintenance of balanced water chemistry. When swimming pool chemicals are not at their ideal levels, swimmers can be at risk of contracting illnesses and suffering from skin irritation, the water can turn dull and cloudy, and pool or spa equipment, hoses, and surfaces can become damaged.

DOSAGE - The ideal range is 200 to 400 parts per million (ppm). Six lbs. per 10,000 gallons will raise the hardness level approximately 50 ppm. The minimum calcium hardness level is 150 ppm. Trust Rx Clear as the most reliable leader in pool cleaner products and supplies.

Increases Water Hardness

Low calcium hardness level can cause corrosive water

Prevents the staining or etching of your pool's surface

Ideal Calcium Hardness range 200 - 400ppm