Pipework chlorination has become a necessity ever since the Water Supply Regulations 1999 came into force. It is the only way to safeguard water quality when installing new private water pipes. Unless you complete this water treatment in London, water network wholesalers will not connect your new property to the supply mains. Today, you will learn everything about pipework chlorination, including how it works and when it is needed.
Understanding the Fundamentals of Water Pipework Chlorination
Pipework chlorination is a process that involves flushing and chlorinating a property’s pipework and internal water systems. In doing so, they are thoroughly disinfected. There are several reasons why you may require chlorination. For example, you will need it while installing new pipework. If you suspect the water supply is contaminated, chlorination will disinfect it.
An Overview of the Process of Chlorinating Water Pipework
The controlled process of pipework chlorination disinfects water supply lines and ensures safety. It involves flushing, chemical treatment, neutralisation, and testing to remove microorganisms and contaminants.
Initial Flushing
It starts by flushing the pipework with clean water to remove debris, dirt, and loose particles. This part of the process prepares the system for disinfection.
Adding a Chlorinated Solution
After cleaning the pipework, the system is filled with a chlorinated solution. The minimum concentration of this water treatment in London is 50mg/litre for proper sterilisation.
Contact Time
The solution stays within the pipework for at least an hour. Leaving it there for this time can eliminate bacteria and other microorganisms.
Neutralisation and Disposal
The chlorinated water has to be neutralised after the contact period. Then, it is safely discharged in accordance with regulations.
Final Flushing and Testing
In the last stage, the system is flushed again with clean water before it is refilled. After standing for almost an hour, a few samples are extracted and taken to a laboratory for testing. If approved, certification is issued, confirming the system’s safety and compliance.
When is the Right Time to Have Your Pipework Chlorinated
Pipework chlorination is essential in multiple situations, mostly for water safety compliance. In many instances, it is a legal requirement that has to be fulfilled before connecting it to the mains supply.
New Installations and System Integration
Chlorination is mandatory after installing new pipework or systems. Without proper disinfection, connection to the mains supply may be refused.
Suspected Water Contamination
If there is any sign of contamination within the water supply, chlorination is required to eliminate dangerous bacteria and restore safe conditions.
Installation of Fire Sprinklers
Sprinkler systems must be chlorinated before use. It ensures the water circulating within the system is hygienic and safe.
Periods of Inactivity
If pipework is unused for too long, it must be chlorinated before reuse. Stagnant water often encourages bacterial growth, and chlorination sanitises the system.
Main Supply Work or Modifications
Any alterations associated with the mains, including new connections or repairs, require chlorination. It ensures all regulatory standards are met.
At JTJ Pipeline Services Ltd, we handle all types of water treatment in London, from new installations to existing systems. Our engineers are equipped to perform water sampling and analysis, issuing water chlorination certificates to ensure your property complies fully with HSE regulations. In many cases, we can provide chlorination certificates on the same day.
Contact us today.
