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Hard UP Calcium Hardness Increaser 10lb Bag

Free shipping on orders over $29.99

$24.00

$ 9 .99 $9.99

In Stock

About this item

  • Rapidly raises calcium hardness in pools and spas
  • Also used as Ice Melt



4.6 out of 5 stars Best Sellers Rank
  • #140,793 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
  • #219 in Swimming Pool Balancers

Product Description

poollogoround
hardener hard up pool hardness protection calcium increaser

Maintain the Right Hardness with Our Calcium Hardener for keeping your Pool in Tip Top Condition

Prevent your pool water from becoming corrosive or scaling with banger labs Calcium Hardener. Our Calcium hardener can prevent the scaling and etching of your Pool’s surface. Calcium is required for the stability of pool water. It makes it easier to manage the chemical makeup of the water, and it saves money on other chemicals by reducing water chemistry variations.

pool protection calcium hardness prevent water

Why is it so Important to use Hardener for your Pool?

Pool water becomes corrosive when it becomes too soft. If you do not manually add calcium hardener to the pool, the water will begin to take what it requires from any part of your pool or pool equipment that contains them, such as stones, concrete, metal, grout, and so on.

Low calcium hardness is frequently associated with the following issues:

  • Tile deterioration plaster surface grouting and delamination
  • Pool deck etching or pitting, as well as stone and concrete surfaces surrounding your pool Metal component corrosion (i.e. pipes, ladders, filters, screws, etc.)
  • Concrete pool flooring and walls pitting
pool chlorine protection balance

First Step to balance your Water:

The first step to Balance your water is to test your pool's water and ensure that it is correctly balanced. pH should be between 7.4 and 7.6, total alkalinity should be between 80 and 120 ppm (parts per million). Calcium hardness should be between 200 and 400 parts per million.

Check that the testing kit you're using covers all of these levels. Calcium hardness isn't taken into account by some test strips or liquid test kits, so double-check before you buy.

Protect balance water

When to use the Hardener?

Pool Water is below 150 ppm? Worry about the Severe and devastating damage to the health of your pool? Don’t worry; you’re at the right Place. Get the best quality of Hardener from Banger Labs. Our Calcium Hardener is made specifically to protect the pool by stabilizing the water and reducing the effects of pH and alkalinity oscillations.

pool calcium hardener increaser

We’ve got you Covered!

Failure to keep the hardness too low can become aggressive towards the metal parts in the pool. The shiny finish can become dull. There is no way to undo the damage caused by soft water. The only way to repair the damage caused by soft water is to replace or resurface the damaged part, so don't let your pool's calcium hardness fall below 150ppm. Use our Calcium hardener to get the most out of your pool experience!


Ria
Reviewed in the United States on March 4, 2025
Works fast
So far so good!
Reviewed in the United States on August 24, 2024
Worth it
Charles Porter
Reviewed in the United States on October 10, 2024
Product was not very effective disinfectant.
Sandy
Reviewed in the United States on January 24, 2024
Great product, price & delivery time!!
Robert S.
Reviewed in the United States on August 7, 2023
This product does exactly what it is intended to do at a great price.
Customer
Reviewed in the United States on December 13, 2023
Great deal
Douglas J
Reviewed in the United States on November 14, 2023
Did a good job and good price.
Kindle Customer
Reviewed in the United States on July 29, 2022
I needed 20 lbs as per pool shop analysis, however very difficult to find this pool chemical in 10lb size, either a lot smaller or huge amount I would need to store without knowing if I could ever use it again. They were also very expensive. Glad to have found this Company offering it on Amazon at a very reasonable price and of course 10lb size. Did the job.
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