Best Granular Swimming Pool Chlorine of 2026

Blue Horizons Shock Chlorine is a powerful calcium hypochlorite product designed to effectively treat your outdoor pool or hot tub. Regular use helps maintain sparkling water by eliminating algae and swimmer waste, ensuring a safe swimming environment. You can conveniently apply it through the skimmer, making it ideal for pools that may have been neglected or experienced heavy bather loads. With a pH level of 11.5, this granular shock chlorine is part of the BOAST system, providing you with routine disinfection and peace of mind.

The Relax Chlorine Shock Treatment is ideal for maintaining crystal-clear pool water. It is designed for shock treatment, making it particularly useful for quickly eliminating contaminants and restoring water quality. Additionally, this product is suitable for regular use in soft water areas, ensuring that your swimming environment remains inviting and hygienic. You will appreciate the convenience of having a reliable chlorine oxidiser that meets your pool's needs, making it easier to enjoy your hot tub or swimming pool without worries.

The Bluewater Shock Chlorine is a 2kg granular solution designed for effective pool and spa sanitisation. This product is essential for maintaining clean and clear swimming water, as it helps eliminate bacteria and contaminants. You will appreciate the convenience of using granular chlorine, which dissolves quickly and is easy to apply. With its powerful formulation, you can ensure a safe swimming environment for yourself and your family, enhancing your overall pool experience.

The Blue Horizons Pool Shock is a 5kg granular chlorine product designed for swimming pools. These granules help to effectively sanitise your pool water, ensuring it remains clean and safe for swimming. By using this shock treatment, you can quickly eliminate harmful bacteria and algae, promoting a healthier swimming environment. It's easy to apply, making pool maintenance more convenient for you, so you can spend less time worrying about water quality and more time enjoying your pool.

Clearwater Chlorine Granules are designed for rapid disinfecting of your hot tub or swimming pool water. These stabilised granules release free active chlorine, ensuring a hygienic swimming environment by killing bacteria and harmful organisms. Unlike traditional tablets, these fast-dissolving granules start working instantly, saving you time and effort. They also help stabilise chlorine levels, keeping your pool's chlorine between 1-3 mg/litre and hot tub's chlorine between 3-5 mg/litre, ensuring optimal water quality for your enjoyment.

The Bluewater Chlorine Granules are essential for maintaining your swimming pool or spa. These stabilised granules effectively kill waterborne bacteria, ensuring a safe and clean environment for you and your family. Their fast-dissolving formula means you can quickly treat your water, allowing you to enjoy your pool without delay. Additionally, these granules help prevent the loss of chlorine to sunlight, which means your pool remains sanitised for longer, giving you peace of mind and reducing the need for frequent reapplication.