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Pool Chemicals

  • £50 off

    Chlorine Reducer Sodium Thiosulfate 25Kg

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  • £50 off

    Chlorine Reducer Sodium Thiosulfate 25Kg

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  • Sale! £50 off

    Blue Horizons Granular Floc 2Kg

    Original price was: £17.26.Current price is: £9.99.
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  • £50 off

    Relax Clear Tablets 8 x 100g

    £9.99
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  • Sale! £50 off

    Blue Horizons Aqua Sparkle Tablets 500g

    Original price was: £13.99.Current price is: £10.97.
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  • Sale! £50 off

    Blue Horizons Chlorine Reducer 1KG

    Original price was: £19.14.Current price is: £10.99.
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  • £50 off

    Blue Horizons AlgiMAX Eliminator 2Ltr

    £47.94
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  • £50 off

    Hardness Plus (Calcium Chloride) 25Kg

    £58.74
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Pool Chemicals – Keep Your Pool Water Clean, Safe & Balanced

Ensure crystal-clear, hygienic, and well-balanced pool water with our premium selection of pool chemicals. Whether you need sanitisers, shock treatments, algaecides, or pH balancers, our pool chemicals are designed to keep your swimming pool safe, clean, and inviting all year round.
Find the Right Pool Chemicals for Your Pool

Find the Right Pool Chemicals for Your Swimming Pool

💦 Chlorine & Bromine – Keep water sanitised and bacteria-free.
🌊 Shock Treatments – Quickly restore water clarity and eliminate contaminants.
🦠 Algaecide & Clarifiers – Prevent and remove green, yellow, or black algae.
⚖️ pH Balancers & Water Conditioners – Maintain the perfect water balance.
🛑 Flocculants & Stain Removers – Tackle cloudy water, metals, and scale buildup.

Why Use Professional-Grade Pool Chemicals?

Eliminates Bacteria & Algae – Prevents harmful microorganisms from growing.
Keeps Water Crystal Clear – Ensures safe and pleasant swimming conditions.
Extends the Life of Pool Equipment – Protects filters, pumps, and pool surfaces.
Balances Water Chemistry – Avoids skin irritation and cloudy water issues.
Suitable for All Pool Types – Works with chlorine, bromine, and saltwater systems.

Common Pool Water Problems & Solutions

Water is cloudy or murky? – Use a shock treatment or flocculant.
Algae forming on pool walls? – Apply a high-strength algaecide.
pH levels too high or too low? – Adjust with pH increasers or reducers.
Strong chlorine smell or irritation? – Use a shock treatment to remove chloramines.
Metal stains or scale buildup? – Use a stain remover or water conditioner.

📦 Fast UK Delivery – Get your pool chemicals quickly and keep your pool in perfect condition.
🛠️ Expert Advice & Support – Not sure which pool chemicals you need? Our team is here to help!

Shop Pool Chemicals Today!

Maintain a safe, clean, and perfectly balanced swimming pool with top-quality pool chemicals—order now for fast UK delivery!

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Pool Chemicals FAQs

  • Why are pool chemicals important?

    Pool chemicals keep your pool water safe, clean, and free from harmful bacteria. Proper chemical balance prevents:

    • Algae growth – Keeps water clear and prevents green buildup.
    • Bacteria & viruses – Sanitizes water for safe swimming.
    • Cloudy water – Helps maintain crystal-clear water.
    • Equipment damage – Protects pumps, filters, and liners from scale or corrosion.
  • What are the essential chemicals needed for pool maintenance?

    For healthy and balanced pool water, you’ll need:

    • Chlorine or Bromine – Kills bacteria and maintains sanitation.
    • pH Balancers – Adjusts acidity/alkalinity levels for comfort and effectiveness of sanitizers.
    • Shock Treatments – Removes contaminants and restores water clarity.
    • Algaecides – Prevents and eliminates algae blooms.
    • Water Clarifiers – Helps remove fine particles that cause cloudy water.
  • How often should I test my pool water?

    At least twice a week – Check chlorine/bromine, pH, and alkalinity levels.
After heavy use or rain – Chemical levels may need adjusting.
Use a reliable test kit like the Pool Lab 2.0 Photometer for accurate water testing.

  • What is the ideal pH level for pool water?

    The recommended pH range for pools is 7.2 – 7.6. Keeping the correct pH level prevents eye and skin irritation, enhances chlorine efficiency and reduces scaling and corrosion.

  • How do I get rid of cloudy pool water?

    If your pool water is cloudy or murky, try:

    • Shocking the pool with a chlorine shock treatment.
    • Using a clarifier to bind tiny particles for easier filtration.
    • Cleaning or replacing the pool filter.
  • How do I prevent and remove algae in my pool?

    To keep algae under control maintain proper chlorine/bromine levels, brush and vacuum the pool regularly and use an algaecide if algae start to form.

  • What’s the difference between chlorine and bromine?

    Chlorine is a stronger sanitizer that works quickly and is commonly used in outdoor pools. Bromine is more gentle on skin and works better in heated pools and spas.

  • Can I swim immediately after adding pool chemicals?

    Wait at least:

    • 30 minutes after adding pH balancers.
    • 2-4 hours after using chlorine or shock treatments.
    • 24 hours if applying an algaecide or high-dose shock.
  • How do I store pool chemicals safely?
    • Keep in a cool, dry place away from direct sunlight.
    • Store chemicals separately to avoid reactions.
    • Always use gloves and safety gear when handling.
    • Keep out of reach of children and animals
  • Where can I buy pool chemicals in the UK?

    Shop premium pool chemicals at Wizard Hot Tubs, with fast UK delivery and expert support.

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