Top 20 Best calcium hardness increaser substitute [2022]

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There are a few things to consider before purchasing a calcium hardness increaser substitute. This article will cover the advantages and drawbacks of your desired product, including its sustainability, affordability, features, and practical benefits. A solid comparison among a few similar products will be included as well.

Comparison chart for calcium hardness increaser substitute [2022]

Top 20 calcium hardness increaser substitute Review with Buying Guides

Bestseller No. 1
Clorox Pool&Spa 12204CLX Calcium Hardness Increaser, 4 lb, White
  • 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
SaleBestseller No. 2
SpaGuard Spa Calcium Hardness Increaser - 12 Ounce
  • 1 tbs. per 100 gallons raises calcium hardness 25ppm
  • Prevents corrosion of equipment due to low calcium hardness
  • Prevents etching of plaster due to low calcium hardness
Bestseller No. 3
AquaDoc | Spa Calcium Hardness Increaser Hot Tub Owners Rely on, Calcium Increaser Spa Hardness Increaser & Calcium Booster for Hot Tubs, Spa Calcium Increaser & Hot Tub Water Hardener Spa Chemicals
  • Make balancing your water easier & more cost effective with AquaDoc's calcium hardness increaser. Our spa calcium hardness increaser is vital to ensuring proper water hardness levels in your hot tub. AquaDoc's Calcium Booster gets your hardness up.
  • Avoid corrosion, etching, and staining - AquaDoc's Professional Grade Hot Tub Calcium increaser is your best defense against soft water in your hot tub or spa. Guard calcium levels from decreasing too low with our spa Calcium booster for hot tubs.
  • How it works - AquaDoc's Hot Tub Calcium hardness Increaser works to raise your water's hardness level to ensure properly balanced hot tub water. Our spa hardness increaser easily works to raise your Calcium levels by 10ppm increments or more.
  • The Hardness Increaser Hot Tub Owners Love - When it comes to Spa Chemicals calcium hardness increaser is a must have. Without hot tub chemicals calcium hardness can become unbalanced. Always have a hot tub calcium booster ready and waiting.
  • Easy to Use, Made in the USA - (1) Check your calcium levels, (2) 1 ounce of AquaDoc's Calcium increaser will boost water's hardness level by 10ppm. (3) After determining hardness level goal, add proper amount of increaser while equipment is on. (4) Run filter for 1 - 2 hours, wait 20 minutes, then retest water.
SaleBestseller No. 4
Leisure Time CB Calcium Booster Balancer for Spas and Hot Tubs, 32 fl oz
  • BENEFITS: Raises water hardness to maintain a level of hardness between 150-400 ppm
  • USE: One ounce increases hardness 7 ppm in 500 gallons of water
  • COMPATIBILITY: Compatible with chlorine, bromine, ozone, and biguanide sanitizers
  • FEATURES: Prevents corrosion and foam; Part of Leisure Time's Simple Spa Care program
  • INCLUDES: One 32-oz bottle of Leisure Time Calcium Booster
Bestseller No. 5
SpaPure Calcium Hardness Increaser 16oz
  • Safely raise the calcium hardness levels in your spa water
  • Stop and prevent the corrosion of your spa's surfaces
  • Compatible with all systems including bromine, chlorine, mineral sanitizers, and biguanide
SaleBestseller No. 6
Spa Essentials 32534000 Calcium Hardness Increaser Granules for Spas and Hot Tubs, 12-Ounce
  • Increases Calcium Hardness Level In Spa Water
  • Helps Prevent Corrosion Of Spa Equipment And Surfaces
  • Easy To Use
  • No Assembly Required
Bestseller No. 7
Pool Mate 1-2808B Swimming Pool Calcium Hardness Increaser, 8-Pounds
  • 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
Bestseller No. 8
Robelle 2825B Pool Calcium Increaser, 25-Pounds (Bag)
  • 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
Bestseller No. 9
Hard UP Calcium Hardness Increaser 10lb Bag
  • Rapidly raises calcium hardness in pools and spas
  • Also used as Ice Melt
Bestseller No. 10
Spa Choice 472-3-3061 Increase Calcium Spa Chemical, 1-Quart
  • Spa Choice Increase Calcium is used to increase calcium hardness in spas and hot tubs in areas with low levels of hardness
  • Low hardness will etch plaster and corrode spa equipment
  • The ideal hardness level is 200-400 ppm (parts per million)
  • Downloadable User Guide Available Under Product Information: Technical Specifications
SaleBestseller No. 11
HTH Pool Care Calcium Hardness Up, Swimming Pool Chemical Protects Swimming Pool Surfaces and Liners, 4 Lbs
  • BENEFITS: Raise the calcium hardness of your swimming pool water to protect your pool surfaces and equipment from harm
  • COMPATIBILITY: Pool care chemical works with all swimming pools
  • RAISES CALCIUM HARDNESS LEVELS: Helps prevent swimming pool water from becoming corrosive
  • PROTECTS & PREVENTS CORROSION: Protects pool liners, metal, and plastic surfaces as well as equipment from damage
  • YOU'RE ALL CLEAR WITH HTH: For best results, use HTH 6-Way Test Strips weekly to test, balance and maintain calcium hardness levels between 200 and 500 ppm
Bestseller No. 12
Natural Chemistry Spa Calcium Hardness Increaser (1.83 lb)
  • Boosts the calcium hardness level in your spa or hot tub
  • Prevents corrosion damage to spa surfaces, plumbing, and other equipment
  • Reduces eye and skin irritation
Bestseller No. 13
Gritt Commercial Calcium Hardness Increaser for Swimming Pools, Hot Tubs, & Spas - Calcium Chloride, Increases Calcium Hardness Levels, Stops Rust, Scales, Pinhole Leaks - 4 lbs
  • CALCIUM HARDNESS INCREASER: Water naturally wants to be balanced; high pH, fluctuating temperatures, & evaporation disturb the pool water chemistry. Water, when not treated, balances itself out by drawing calcium by chipping away plaster pool walls, or corroding metal equipment in your vinyl or fiberglass pool, all of which leaves ugly stains on your pool surfaces. Gritt Commercial calcium hardness increaser makes managing pool chemistry easier and more cost-effective.
  • IMPROVES POOL HEALTH: Our calcium hardness increaser is made with Calcium Chloride and will raise the total calcium hardness in your pools, spas, and hot tubs. Once added, our Calcium hardness increaser prevents corrosion of your swimming pool metal fittings, deters ugly rust stains, reduces scaly white buildup on the pool surfaces, and stops pinhole leaks in critical pool equipment.
  • CONCENTRATED FORMULA: The colder your climate, the more calcium hardness you should have in the water. A 300 ppm calcium hardness is minimum in a hot climate. If your climate can make the pool freeze, 400 ppm is the bare minimum. The colder your climate, the more calcium hardness you should have in the water. Just 1.5 lb. of our product can increase the calcium hardness levels by 50 ppm.
  • EASY TO USE: Add this product on the day when no other water treatment chemical has been added. Test water for hardness with a test kit or strip. If the calcium hardness is below 200 ppm, determine the dosage of this product from the table at the back of the bottle. Broadcast product over the entire water surface while the pump is running. Do not pre-dissolve this product. Pool use may resume 15 minutes after the product has fully dissolved.
  • KEEPS WATER BALANCED: Calcium hardness stability is a big benefit in water chemistry. Calcium doesn't fluctuate as pH or alkalinity will. Calcium provides a sturdy foundation to balance water around. Our Calcium hardness helps water chemistry behave more predictably and keeps it from attacking metal fittings, heat exchangers, and causing pinhole leaks. Our formula is made safely in the USA.
Bestseller No. 14
Puri Tech Pool Chemicals 10 lb Calcium Hardness Increaser Plus for Swimming Pools & Spas Increases Calcium Hardness Levels Prevents Staining on Surfaces
  • Calcium hardness increaser for pool and spa available in resealable bags for easy storage
  • Calcium hardness increaser active ingredients: Calcium Chloride
  • Raises calcium hardness increaser for pool and spas. Balance calcium hardness level prevents foaming and surface erosion or scaling.
  • DOSAGE: 2,000 Gallons: 1.5 Lbs to increase hardness 50ppm, 3 Lbs/100ppm, 6.25 Lbs/200ppm. 5,000 Gallons: 3 Lbs to increase hardness 50ppm, 6.25 Lbs/100ppm, 12.5 Lbs/200ppm. 10,000 Gallons: 6.25 Lbs to increase hardness 50ppm, 12.5 Lbs/100ppm, 25 Lbs/200ppm. 20,000 Gallons: 10.5 Lbs to increase hardness 50ppm, 25 Lbs/100ppm, 50 Lbs/200ppm.
  • Puri Tech pool calcium increaser fast acting formula.
Bestseller No. 15
Calcium Hardness Increaser (1 Gallon) Calcium Chloride Powder for Pools & Hot Tubs
  • 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
SaleBestseller No. 16
In The Swim Pool Calcium Hardness Increaser - 25 Pound Bucket
  • Average 97% Calcium Chloride
  • Increases calcium hardness level
  • Dosage 6 lbs per 10,000 gallons to raise calcium hardness level about 50 ppm
  • Prevents aggressive or corrosive water
Bestseller No. 17
Brilliance for Spas Calcium Hardness Increaser - 14 oz (2 Pack)
  • Brilliance for Spas Calcium Hardness Increaser (14 oz) (2 Pack)
  • Raises Calcium Hardness in Spa Water
  • Concentrated Formula
  • High Purity, Low Dusting
Bestseller No. 18
Robarb 20345A Spa Specialties Calcium Hardness Up for Spas and Hot Tubs, 1-Quart
  • Prevents foaming and scaling
  • Raises hardness levels
  • Fast acting liquid
  • Package Dimensions: 7.874 L x 24.384 H x 8.382 W (centimeters)
Bestseller No. 19
Doheny's Calcium Plus, Calcium Hardness Increaser, 25 Pounds
  • Calcium Hardness Increaser for Swimming Pools: Instantly increase the calcium hardness levels in your swimming pool
  • Pool Calcium Hardness Increaser: Proper Calcium Hardness levels increase the effectiveness of your other pool chemicals
  • Benefits of Doheny's Calcium Plus: Balanced Calcium Hardness levels reduce equipment corrosion and staining in your swimming pool
  • Ingredients: Made of 100% Granular Calcium Chloride
  • Packaging: 5-lb ready-to-use pouch or 25-pound bucket available

What to Think Before Buying calcium hardness increaser substitute

When looking to buy calcium hardness increaser substitutethere are a few things you should keep in mind. Here are some important factors to think about before making your purchase:

Realize your Needs

The first step is to figure out what your needs or requirements are. When you have no any knowledge about your own needs than itÂ’s may you can possible to choose the wrong product. may you can be a waste of good amount of investment.

Warranty and Return Policy

Hundreds of companies are making products everyday. Many of them ensures the higher quality as well. And then we are being known about their products through their creative advertisements. Stilleverything is okay. But then appears the Warranty and After Sales Service. This thing may sounds littlebut can make a huge difference.

Durability & Quality

Color StylePerformanceMaterialsand most importantlyDurability are all components of quality. You must consider the facts about ensuring quality while making a purchase. End of the daythis is what you are paying for.


The calcium carbonate pool suppliesis the one that best meets the needs of the customer. It is important to consider the customer’s needs when choosing a product. There are many products on the marketso it is important to choose the one that is best for the customer.

adminBlogger at - Max Live Pro

We are Max live pro blog, a group of bloggers who love to write and share their thoughts and experiences with the world. Our passion is writing, and we hope to use this platform to help others grow in knowledge and understanding. With each post, we aim to provide useful tips, insights and advice that can help you achieve your goals. We hope you continue to follow us as we explore the world of blogging and continue to learn and grow together.

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