---
product_id: 421265071
title: "In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 25 Pounds"
brand: "in the swim"
price: "A$155"
currency: AUD
in_stock: true
reviews_count: 5
url: https://www.desertcart.com.au/products/421265071-in-the-swim-pool-shock-68-cal-hypo-granular-sanitizer
store_origin: AU
region: Australia
---

# 68% Calcium Hypochlorite for rapid sanitizing 1 lb per 10,000 gallons dosage for precise treatment Eliminates bacteria, algae & microorganisms fast In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 25 Pounds

**Brand:** in the swim
**Price:** A$155
**Availability:** ✅ In Stock

## Summary

> 🛡️ Shock your pool into perfection—because clear water is the new status symbol!

## Quick Answers

- **What is this?** In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 25 Pounds by in the swim
- **How much does it cost?** A$155 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/421265071-in-the-swim-pool-shock-68-cal-hypo-granular-sanitizer)

## Best For

- in the swim enthusiasts

## Why This Product

- Trusted in the swim brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Use:** Perfect for pools, spas, and hot tubs—your all-in-one water defense.
- • **Non-Stabilized Formula:** Super shock your water without cyanuric acid buildup—maintain peak pool health.
- • **Precision Dosage Control:** 1 lb per 10,000 gallons ensures efficient, no-waste treatment every time.
- • **Power-Packed Sanitization:** 68% Cal-Hypo delivers rapid, deep-clean chlorine shock for crystal-clear water.
- • **Algae & Bacteria Eradicator:** Kills stubborn algae blooms and harmful microbes to keep swimmers safe.

## Overview

In The Swim Pool Shock features a powerful 68% Calcium Hypochlorite formula that rapidly eliminates algae, bacteria, and microorganisms. Designed for pools, spas, and hot tubs, it offers precise dosing at 1 lb per 10,000 gallons to maintain crystal-clear, safe water. Its non-stabilized formula prevents cyanuric acid buildup, making it ideal for both routine maintenance and super shocking treatments.

## Description

h5 { color: #000; font-weight: 600; } When algae starts getting out of hand, turn to the fast-acting Calcium Hypochlorite chlorine granules pool shock! The 68% Calcium Hypochlorite active ingredient is very effective at killing and deactivating harmful contaminants such as bacteria, algae and other microorganisms. With 65% minimum available chlorine, Cal-Hypo (Calcium Hypochlorite) will provide you with the sanitizing power you need to keep your swimming pool or spa water crystal clear and safe for your swimmers. The non-stabilized formula is great for super shocking your water or everyday routine dosages, without the need to contain cyanuric acid. 68% Active Ingredient Calcium Hypochlorite pool shock 50lb bucket has 68% calcium hypochlorite active ingredient to provide strong, concentrated sanitization for your pool water. With 65% minimum available chlorine, In The Swim Calcium Hypochlorite will help maintain healthy and sanitary swimming pool water. Great for Commercial and Residential Use Whether your swimming pool is at a hotel, apartment complex or home, Calcium Hypochlorite granules are a great pool shock to keep your water sanitized and clean. Don't settle for anything less when looking for a pool shock to effectively treat pool problems like algae blooms and swimming accidents fast. As the chlorine dissolves in the water, it forms hypochlorous acid which is what kills and eradicates algae and bacteria. By destroying bacteria, algae, germs and pathogens, Calcium Hypochlorite pool granules provide a safer swimming environment while also improving and maintaining water clarity. Cal-Hypo pool shock 25lb bucket will provide your pool and spa the sanitizing power you need to keep your water crystal clear for its occupants. Usage Directions for Swimming Pools: Add the recommended dosage of In The Swim Calcium Hypochlorite Pool Shock during the evening hours while

## Features

- Powerful chlorine shock treatment that is great for regular maintenance.
- Quickly eliminates algae, bacteria, and other harmful contaminants from your pool water.
- Main active ingredient is 68% Calcium Hypochlorite (Cal-Hypo) for quick sanitizing.
- Dosage: 1 Pound per 10,000 gallons
- Cal-Chlor granules can be used in swimming pools, spas and hot tubs. Must pre-dissolve/dilute to prevent bleaching of the liner.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Multicolor |
| Size | 25 Pound |
| Style | Bucket |
| Height | 12.2 inches |
| Length | 13.2 inches |
| Weight | 25 Pounds |
| Width | 13 inches |
| Usage | Above-Ground |
| Batteries Included? | No |
| Brand | In The Swim |
| Manufacturer | In The Swim Discount Pool Supplies |
| Item model number | 25237 |
| Product Dimensions | 33.53 x 33.02 x 30.99 cm; 11.34 kg |
| ASIN | B002WKJ6IS |

## Product Details

- **Brand:** In The Swim
- **Item weight:** 11.34 kg
- **Item form:** Granular
- **Product benefits:** Controls Algae
- **UPC:** 815100020700

## Images

![In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 25 Pounds - Image 1](https://m.media-amazon.com/images/I/51htGLF-wFL.jpg)
![In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 25 Pounds - Image 2](https://m.media-amazon.com/images/I/811jPJqAIGL.jpg)
![In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 25 Pounds - Image 3](https://m.media-amazon.com/images/I/814EaWrAK0L.jpg)
![In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 25 Pounds - Image 4](https://m.media-amazon.com/images/I/81+shZxa1mL.jpg)
![In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 25 Pounds - Image 5](https://m.media-amazon.com/images/I/81ItPt95j1L.jpg)

## Questions & Answers

**Q: How large are the tabs (3 inch or smaller) and how many tabs in each 50 lb bucket?**
A: Granules are not tabs.  They are coarse particles, about the consistency of hominy grits.  There are probably several million granules in a 50 lb. bucket.  I'm going to go out on a limb here and estimate that there are 50 lbs of them. 
 What I do is fill the scoop (it comes inside the bucket) with granules,  get 1 to 2 gallons of water from my pool in a 5 gal. plastic bucket and pour in the particles.  I stir them around with a stirrer made of a short length of PVC pipe and break up any clumps that have formed over time.  I pour the slurry into the pool at several different points.  The granules are not stabilized chlorine (which most tabs are) but calcium hypochlorite (same chemical as bleach).

**Q: I feel dumb, but I can't figure out how to open this bucket. I've tried jostling the red tab and turning but to no avail. Any tips?**
A: I had this issue the first time as well.  Examine the red lock tab to see how it locks into place by falling into those holes.  You need to pull up on that.  Thing is, mine had already been pulled up.  So instead of concentrating my energy on that I stood up, grabbed the top of the bucket with both hands and turned it left in order to open it.  Simply grabbing it from the side with one hand was not enough the first time so you'll need both hands and grab from the top.  Have another person hold the red tab up at the same time and it should open easily.

**Q: Does this product contain a cyanide-based UV stablizer?**
A: It does not contain stabilizer.

**Q: can be used for potable/drinkable water and if it falls under NSF Standard 60?**
A: Haha! That's a good one! It works great for pool water.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Green to blue!
  

*by D***Z on Reviewed in the United States on 19 July 2024*

The only products we use on a regular basis is this and ph increaser. Also from in the swim! In the swim products are easy to use. They come with a scoop in each bucket. Bucket are easy to open usually. Helps keep chlorine level in range. A 25 lb bucket lasts about a month with normal use. Good quality product. Bucket is good size. Dissolves well and does not clump at bottom.

### ⭐⭐⭐⭐⭐ 







  
  
    Works well
  

*by C***I on Reviewed in the United States on 31 July 2024*

No complaints and you get a measuring cup.

### ⭐⭐⭐⭐⭐ 







  
  
    Strong
  

*by L***X on Reviewed in the United States on 18 July 2024*

Strong and seems to work well for algae control. Fumes are strong if you dissolve in bucket of water before adding to pool.

## Frequently Bought Together

- In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 25 Pounds
- In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped, Slow Dissolving - 90% Available Chlorine - Tri-Chlor - 50 Pounds
- Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)

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**Shop now:** [https://www.desertcart.com.au/products/421265071-in-the-swim-pool-shock-68-cal-hypo-granular-sanitizer](https://www.desertcart.com.au/products/421265071-in-the-swim-pool-shock-68-cal-hypo-granular-sanitizer)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-29*