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Stabilised Chlorine Granules for Pools & Spas

SKU
CHEM-STAB-CHL

Stabilised Chlorine Granules for Pools & Spas provide fast-dissolving, long-lasting water sanitisation. 

A UV protected formula that reduces chlorine loss from the sun, keeping your pool clean and safe with minimal maintaince. 

Available in 1kg and 5kg container sizes, and multipacks. 

Rating:
100%

Stabilised Chlorine Granules for Pools & Spas provide fast-dissolving, long-lasting water sanitisation. 

A UV protected formula that reduces chlorine loss from the sun, keeping your pool clean and safe with minimal maintaince. 

Available in 1kg and 5kg container sizes, and multipacks. 

Product Name RRP Discount Price QtyStock
Stabilised Chlorine Granules 1kg
SKU: CLGRAN1AP-1
£22.15 68% £6.98

In Stock

Stabilised Chlorine Granules 1kg x 6
SKU: CLGRAN1AP_6
£132.90 64% £47.74

In Stock

5kg Stabilised Chlorine Granules
SKU: CLGRAN5AP-1
£103.20 78% £22.50

In Stock

20kg ( 4 x 5kg ) Stabilised Chlorine Granules
SKU: CLGRAN5AP_4
£412.80 78% £90.00

In Stock

Lead TimeLead Time: Next Working Day

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5kg Stabilised Chlorine Granules for Pools & Spas 

Maintaining a clean and healthy pool or spa requires the right balance of santising chemicals. Stabilised Chlorine Granules are a highly effective and convienient solution for keeping your water crystal clear and free from harmful bacteria. These granules dissolve quikcly, making it easy to maintain the right chlorine levels without the hassle. 

Available in 1kg and 5kg container sizes, these chlorine granules suit all typea of pools and spas: 

  • 5kg Stabilised Chlorine Granules - Ideal larger bodies of water such as inground pools, swim spas, and hot tubs. 
  • 1kg Stabilised Chlorine Granules - Perfect for top-ups and smaller bodies of water such as above ground swimming pools, Lay-Z-Spas, and Hot Tubs. 

 


 

Why Use Swimming Pool Chlorine Granules? 

Chlorine granules are an essential part of pool and spa maintenance, ensuring your water remains safe for use. Unlike liquid or tablet alternatives, swimming pool chlorine granules dissolve rapidly, allowing you to adjust chlorine levels efficiently.


 

Benefits of Using Chlorine Granules in Pools & Spas

  • Fast Dissolving Formula - Quickly raises chlorine levels to sanitise water effectively. 
  • Easy to Dose & Apply - Simply measure the required amount based on your water volume.  
  • Helps Maintain Clear Water - Prevents bacteria, algae growth, and other contaminants. 
  • Works for Both Pools & Spas - Suitable for maintaining hygiene in various water volumes 

 

How to Use Pool Chlorine Granules Correctly 

To maximise effectiveness, fine-grade swimming pool chlorine granules should be pre-dissolved in water before being added to your pool or spa. Always add granules to water rather than pouring water onto them, as this prevents unwanted chemical reactions. 

 

Ideal Chlorine Levels for Pools & Spas

  • Swimming Pools: 1-3 mg/l (ppm)
  • Hot Tubs & Swim Spas: 3-5 mg/l (ppm)

 

Additionally, always maintain a pH level between 7.2 - 7.6 to ensure your chlorine functions optimally. Regular testing before and after chlorine application helps maintain proper water balance.


 

What Makes Stabilised Chlorine Granules Better? 

Stabilised chlorine granules contain cyanuric acid, a stabiliser that prevents chlorine from breaking down quickly under sunlight. Without stabilisation, UV rays degrade chlorine rapidly, reducing it's effectiveness and requiring more frequent dosing. 

 

Key Advantages of Using Stabilised Chlorine Granules: 

  • Extended Chlorine Effectiveness 
  • Reduced Chlorine Consumption
  • Consistent water Sanitisation

 

How Much Chlorine Granules Should you Use? 

For accurate dosing, follow this guideline:

2g of stabilised chlorine granules raises chlorine by 1 ppm per 1000 litres (220 gallons) of water. 

However, always read the products specific instructions for precise application, as requirements may vary. For safety, wear protective equipment and handle chlorine in a well-ventilated area. 


 

The Importance of Balancing pH & Chlorine Levels 

While chlorine is essential for pool sanitisation, pH balance plays an equal critical tole in maintaining a safe and comfortable swimming environment. pH measures the acidity or alkalinity of your pool water, and it directly impacts how effective chlorine is at disinfecting. 

 

Low pH (Too acidic): 

  • Corrodes pool equipment
  • Causes skin & eye irritation 
  • Weakens chlorine effectiveness

High (Too Alkaline) 

  • Leads to cloudy water
  • Causes scaling on pool surfaces 
  • Reduced Chlorine's sanitising power 

 

How to Maintain pH Balance: 

  • The ideal pH range for pool water is 7.2 - 7.6 (slightly above neutral) 
  • Regularly test pH levels using test strips, photometer or a digital meter like the amazing Safe Swim System

Adjust pH as needed: 

  • Use pH plus (sodium carbonate) if the pH is too low 
  • Use pH minus (sodium bisulfate) if the pH is too high. 

 

A well balanced pH ensures your chlorine remains effective, helping to keep your pool and spa water clear, comfortable, and safe for swimmers and bathers. 


 

Helpful Guides & Rescources

Looking for more expert advice on stabilised chlorine granules and general pool maintenance? Check out these helpful blog posts from 1st Direct Pools. 

For more expert advice, visit our blog section!


 

Why Shop With 1st Direct Pools? 

At 1st Direct Pools, we go the extra mile to provide you with expert technical service and support. We're not just another online store, we are professionals who genuinely care about helping you maintain the best swimming pool or spa experience. Heres a few reasons on why to use us: 

  • Expert Technical Service: Our team is here to assist you, even if you don't have a product code. We offer real support from knowledgeable, experienced people, no automated responses. 
  • Free Next Day Delivery Over £60: Get your pool and spa supplies fast! We provide next-day delivery on orders placed before 12pm. 
  • Price Match Promise: Found it cheaper elsewhere? Fill out our price match form, and we will do out best to beat or match the price. 
  • Access to Trade Professionals: Need help with pool maintenance or installations? We work with thousands of trsuted trade professionals across the country. Whether you need a new liner, cover, or professional servicing, we can connect you with the right experts. 

When you shop 1st Direct Pool, you're not just buying products - you're gaining access to a reliable support network that makes pool care simple and hassle free. 

 

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