Clorox Pool&Spa Calcium Increaser Pool Water Balancers Granules, 4 lb Bag
Clorox Pool&Spa Calcium Increaser Pool Water Balancers Granules, 4 lb Bag
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Clorox Pool&Spa Calcium Increaser Pool Water Balancers Granules, 4 lb Bag

Clorox Pool&Spa Calcium Increaser Pool Water Balancers Granules, 4 lb BagClorox Pool Spa Calcium Increaser for Swimming Pools 4 lb Bag3 pack Clorox Pool Spa Calcium Increaser for Swimming Pools 4 lb Bag
Pack Size:Single

Key item features

  • Clorox Pool&Spa Calcium Hardness Increaser, 4 lb bag:
  • Raises low total hardness levels in swimming pool water
  • Prevents corrosion, etching, and staining
  • Great for plaster pools
  • Ideal soft water areas due to the unique challenges these pool owners face
  • Maintain 175-225 ppm total hardness
  • For best results, use with the Clorox Pool app to get personalized dosage recommendations
Current price is $11.82$2.96/lb
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Customer ratings & reviews

4.6 out of 5 stars
stars530 ratings145 reviews
How item rating is calculated
  1. 5 stars82% (437)
  2. 4 stars8% (40)
  3. 3 stars4% (23)
  4. 2 stars1% (3)
  5. 1 star5% (27)

Reviews summary

Pros

  • : Offers good quantity for the cost.
  • : No pre-mixing necessary, easy handling.
  • : Dissolves quickly without residue.
  • : Raises calcium levels as expected.

Neutral

  • : Can be clear, but sometimes confusing or incomplete.
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Showing 1-3 of 145 reviews

Apr 10, 2026
Bob
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Clorox pool chemicals

I started buying Clorox pool chemicals because of the quick and free delivery, after using them last year my water stayed just as clean and clear as when I used the expensive pool store products, so far have used the stabilizer,, algecide, hardness increaser and ph products with good results. will continue to buy from Walmart and start building my summer supply.

Helpful?1BNVJI6F6SVM301154544
Jun 19, 2026
Alex
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Does its job at a reasonable price

It is calcium and does its job of increasing the calcium levels in the pool. The price is good and it comes in a good resealable bag. The instructions are easy to follow as long as you know how much water your pool holds. Like every other calcium product I have tried it does not dissolve very well in a bucket of water before adding it to the pool, but is does seem to dissolve fairly quickly once I pour it in.

Helpful?1BNVJI6F6SVM301154544
May 30, 2026
Marty
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Can use as a refill

You can also use this to refill your damprid containers - it's the same thing. Just be sure to keep the package closed and in a dry location.

Helpful?1BNVJI6F6SVM301154544