# TLDR Review: Clorox Pool&Spa Calcium Hardness Increaser

*Published: 2026-06-09 | Updated: 2026-06-09 | Source: https://shopsavvy.com/reviews-tldr/clorox-poolandspa-calcium-hardness-increaser*

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## Product: Clorox Pool&Spa Calcium Hardness Increaser
**Brand:** CLOROX Pool&Spa

## Pros
- Protects the vinyl pool liner effectively.
- Dissolves quickly for convenient use.
- Enhances water transparency, making the pool look clearer.
- Reduces algae blooms, helping to keep water cleaner.
- Offers great value for a necessary product, matching premium brands in effectiveness.
- Easy to apply with straightforward instructions.
- Comes with two internal packages, providing long-term use.
- Suitable for frequent reordering and repeated applications.
- Transferred to a sturdy plastic container for better moisture protection and easier storage.
- Performs as well as more expensive alternatives.
- Larger volume per package compared to similar products, offering good value.

## Cons
- Requires using a larger amount of product to achieve desired results.
- Slightly more product needed to get the job done effectively.
- Some users may find it takes more than expected to see results.
- No major negatives reported, but some might prefer a smaller or more concentrated pack.

## Bottom Line

Based on common user feedback, the CLOROX Pool&Spa Calcium Hardness Increaser delivers reliable performance and good value, especially for maintaining water clarity and protecting pool liners. If you're looking for a quick-dissolving, cost-effective solution to raise calcium levels, this product is a solid choice. However, be prepared to use a slightly larger quantity to reach your desired hardness, making it ideal for users who don't mind a bit more product per application. For those seeking a more concentrated or smaller package, exploring related products might be worthwhile.

## Pros vs Cons at a Glance

| Pros | Cons |
|------|------|
| Protects the vinyl pool liner effectively. | Requires using a larger amount of product to achieve desired results. |
| Dissolves quickly for convenient use. | Slightly more product needed to get the job done effectively. |
| Enhances water transparency, making the pool look clearer. | Some users may find it takes more than expected to see results. |
| Reduces algae blooms, helping to keep water cleaner. | No major negatives reported, but some might prefer a smaller or more concentrated pack. |
| Offers great value for a necessary product, matching premium brands in effectiveness. |  |
| Easy to apply with straightforward instructions. |  |
| Comes with two internal packages, providing long-term use. |  |
| Suitable for frequent reordering and repeated applications. |  |
| Transferred to a sturdy plastic container for better moisture protection and easier storage. |  |
| Performs as well as more expensive alternatives. |  |
| Larger volume per package compared to similar products, offering good value. |  |

## Current Prices

| Retailer | Price | Availability |
|----------|-------|-------------|
| Buy & Sell Outlet | $9.00  | In Stock |
| Amazon | $9.53  | In Stock |
| The BuildClub | $14.50  | In Stock |
| Super | $18.99  | In Stock |
| SuperShop | $18.99  | In Stock |

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*About this review: We pulled together findings from professional and user reviews, and cross-referenced them with ShopSavvy's pricing data from thousands of retailers to give you the short version.*