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Kesar Digum

Water Main Cleaning and Disinfection

Every repair, replacement, or new connection on a water main exposes the network to dirt and bacteria. Flushing and disinfecting the line before returning it to service restores the water to proper quality. Kesar Digum performs the work with approved agents and follows it with verification sampling at an ISO 17025 accredited laboratory, nationwide.

At a Glance

Type of workFlushing and disinfecting water mains, transmission, and pressure lines
When it's doneAfter a repair, replacement, or new connection to the network
Required underMinistry of Health and water utility guidelines
Main riskContamination entering the line after network work
Water Main Cleaning and Disinfection

A line returning to the network returns clean

Water mains, transmission lines, and pressure lines are opened from time to time to repair a break, replace a section, or make a new connection to the network. The moment the line is opened, soil, dirt, and bacteria enter it and can contaminate the water that will flow through it. Flushing and disinfecting the line with approved agents before returning it to service restores it to proper quality. Kesar Digum carries out the work and follows it with verification sampling that confirms the water in the line is within range before it reaches the consumer.

Who this service is for
Water utilities Local authorities Infrastructure contractors Plumbing contractors Factories Regional councils Irrigation systems Internal water lines
What the service includes

What line disinfection covers

Flushing, disinfection, and verification sampling before returning the line to service.

Flushing the line

Flushing at an appropriate flow velocity to clear out soil, dirt, and residue that entered the line during the repair or installation.

Disinfection with approved agents

Running an approved disinfection solution through the line, at a controlled concentration and contact time, followed by a repeat flush at the end of the process.

Transmission and pressure lines

Handling water mains, transmission lines, and pressure lines according to the nature of the line and its role in the network.

Verification sampling

Taking a water sample from the disinfected line and testing it at an ISO 17025 accredited laboratory to approve the return to service.

Full Details
When it's needed

When should a water main be disinfected?

Any opening of a water main requires disinfection before it is returned to service. These are the common situations:

After a break repair

Repairing a break in a water main exposes it to soil and contamination, and requires flushing and disinfection before supply is resumed.

Event-based

Replacing a section of piping

Replacing or laying a new section of line requires disinfection and verification sampling before it is connected to the active network.

Event-based

New connection to the network

Connecting a new line or facility to the water network requires flushing and disinfection so it does not introduce contamination into the existing system.

Event-based

A line after a shutdown

A line that was shut down for a period and returned to service requires flushing and disinfection, since water standing in it may lose its quality.

Event-based
The risk

What happens without line disinfection?

A line returned to service without disinfection sends the contamination that entered it straight into the network:

Contamination spreading through the network

Soil and bacteria that entered the line during the work flow onward through the network and degrade the water quality for many consumers.

Impact on a large number of consumers

A main line feeds entire neighborhoods and buildings, and contamination in it can reach a large number of users all at once.

Network operator liability

The water utility or authority is responsible for the water quality in the network, and a line that was not disinfected after work exposes them to liability.

Schedule Service

Need to disinfect a water main?

We will flush and disinfect the line with approved agents after the repair or connection, and follow up with verification sampling at an accredited laboratory before returning it to service - nationwide.

Schedule Main Disinfection
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