Help & Advice

You can find in this section technical support guides and information to help you get the best out of your pool or spa. Read our Help & Advice here


Troubleshooting problems in swimming pools and spas. Read our FAQs here

Fast Delivery

Delivery is FREE for all orders over the value of £75.00 and £10.99 for orders under this value to mainland UK. Read more about our delivery policy here

Pool Size Calculator

Knowing your pool's volume is vital when making adjustments as all calculations and dose rates are based on it.

View Pool Calculator

Excellent Reviews

See what our great customers are saying about us on Truspilot.

View Reviews

OPC Large Chlorine Tablets (200g) 5Kg

This Item
Essential Extras
Product ID:
In stock
View All Product Details Here
Swimming Pool Size Calculator

OPC Large Chlorine Tablets (200g) 5Kg

`Designed for the safe and simple application of chlorine sanitiser`

Slow dissolving Stabilised Chlorine Tablets are used to disinfect swimming pool water. These tablets must be dosed via an erosion feeder or floating dispenser. 


  1. Test the water for FREE CHLORINE using a CHLORINE test kit. 
  2. The ideal reading for FREE CHLORINE is 2 – 4 PPM (Parts per Million) and pH reading between 7.3 – 7.5 
  3. Only use these tablets in a floating dispenser or circulatory feeder specifically designed for the use of these chlorine tablets. Never mix these tablets with ANY OTHER CHEMICALS. 
  4. Add tablet(s) to the erosion feeder or floating dispenser. 
  5. DO NOT place these tablets in direct contact with swimming pool surfaces. 

Storage & Handling

  • Store in a cool, dry place away from oxidizing and reducing agents, strong acid, alkalis, solvents and organic materials. 
  • Do not mix with other chemicals. 
  • Always wear suitable gloves and eye protection when handling.

Use biocides safely. Always read the label and product information before use.

To write your own review, please, log in or register