---
product_id: 65172295
title: "Granular Shock Chlorine Tub of 5 Kg- Blue Horizons"
brand: "blue horizons"
price: "€ 169.64"
currency: EUR
in_stock: true
url: https://www.desertcart.fr/products/65172295-granular-shock-chlorine-tub-of-5-kg-blue-horizons
store_origin: FR
region: France
---

# pH 11.5 Calcium hypochlorite 5 kg weight Granular Shock Chlorine Tub of 5 Kg- Blue Horizons

**Brand:** blue horizons
**Price:** € 169.64
**Availability:** ✅ In Stock

## Summary

> 💦 Dive into crystal-clear waters with Blue Horizons!

## Quick Answers

- **What is this?** Granular Shock Chlorine Tub of 5 Kg- Blue Horizons by blue horizons
- **How much does it cost?** € 169.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/65172295-granular-shock-chlorine-tub-of-5-kg-blue-horizons)

## Best For

- blue horizons enthusiasts

## Why This Product

- Trusted blue horizons brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Application:** Easily shock your pool with a simple skimmer application.
- • **Quick Dissolve Formula:** Pre-dissolve for maximum effectiveness in just minutes.
- • **Ultimate Algae Defense:** Say goodbye to green water and hello to crystal clarity!
- • **User-Friendly Guidelines:** Follow our easy steps for a worry-free swimming experience.
- • **Routine Disinfecting Power:** Keep your pool pristine with regular shock treatments.

## Overview

Blue Horizons Granular Shock Chlorine is a powerful calcium hypochlorite solution designed for effective pool and hot tub maintenance. Weighing 5 kg, it combats algae, disinfects, and ensures optimal water quality with a pH of 11.5. Ideal for regular use, it offers a straightforward application process, making it perfect for busy professionals who value a pristine swimming environment.

## Description

Granular Shock Chlorine Tub of 5 Kg- Blue Horizons

## Features

- Blue Horizons Granular Shock Chlorine, a calcium hypochlorite granular shock chlorine, can be used to winterise your outdoor pool or hot tub.
- Granular Shock Chlorine is a highly concentrated chlorine that is used to shock your swimming pool or hot tub water on a regular basis. This should be done every two weeks or more frequently during hot weather or if the water in your pool or hot tub turns green.
- Granular Shock Chlorine is highly effective at ridding sparkling water of algal infestation. Granular Shock Chlorine can be applied using the skimmer. Also use this product if the pool or hot tub has been neglected, if algae has grown on the pool or hot tub's floors and walls, or if there has been an unusually high bather load.
- Equivalent to Shock Xtra and Rapid Shock. Helps to prevent and remove algae. Destroys swimmer waste. It can be used for routine disinfecting. pH 11.5. Part of the BOAST system.
- How to Apply Chlorine Shock Granules:
- 1- Keep pH levels within the optimal range of 7.2-7.6. If the level does not fall within this range, make adjustments. 2- Keep free chlorine residuals in the 1–3mg/l (ppm) range. Shock or oxidising operations should be performed weekly or fortnightly, with a maximum of 10mg/l (ppm) for a complete shock treatment.
- 3- Pre-dissolve this product in a clean plastic container at a maximum of 100g per 2.2 gallons (10 litres) water. Stir well to ensure that the substance is completely dissolved. Add the resulting solution to the pool or hot tub while the pump is turned on, preferably near the water inlets for better dispersion.
- 4- Repeat the dose/application as needed to obtain the target level.
- 5- After using this product, the pool or hot tub water may become briefly hazy; keep the filtration pump running until it clears.
- 6- After shock treatment, wait at least 30 minutes for the chlorine level to decrease below 5mg/l before bathing again. Always test your water after dosage and before bathing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 5 kg |
| Part number | BWP431-5 |
| Manufacturer | CPC |
| Manufacturer reference | BWP431-5 |
| ASIN | B00L8PGRV2 |

## Product Details

- **Brand:** Blue Horizons
- **Item weight:** 5 Kilograms
- **Item form:** Granular
- **Product benefits:** Controls Algae
- **Number of items:** 1

## Images

![Granular Shock Chlorine Tub of 5 Kg- Blue Horizons - Image 1](https://m.media-amazon.com/images/I/71H1fC5alfL.jpg)

## Frequently Bought Together

- Granular Shock Chlorine Tub of 5 Kg- Blue Horizons
- Bluewater Chlorine Granules 5kg - Swimming Pool & Spa
- Bluewater pH Plus Increaser 5kg Swimming Pool Chemicals & Spa

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-26*