Sewer & Drainage Cleaning
One of the productive parts of a preventive maintenance
program is the systematic cleaning of sewer, a
cleaning program is necessary to ensure proper
functioning of the collection system operation,
and to minimize the chances for the development
of more serious problems, such as sewer
backups and overflow. The frequency of sewer
cleaning depends on many factors. A complete
inspection of the system will help with
making a decision as to how often any particular
section of sewer line should be
cleaned. Generally, small pipes should
be cleaned more often than larger pipes
Also to be cleaned more often pipes
that have shown to be subject to root
penetration or grease accumulation.
The amount and type of suitable
equipment, the availability of trained
workers, and the amount of
sewer to be cleaned are also
factors to consider when developing
a sewer program. Typically,
most communities try to schedule
sewer cleaning of their entire
sewer system every 1-5 years.
An effective cleaning frequency
must be determined by each
agency for their specific systems.
Problem sections of pipe will
need to be cleaned more often
than sections scheduled for certain
types of rehabilitation and inspection
work will require cleaning
prior to the start of work.
The amount and type of suitable
equipment, the availability of trained
workers, and the amount of
sewer to be cleaned are also
factors to consider when developing
a sewer program. Typically,
most communities try to schedule
sewer cleaning of their entire
sewer system every 1-5 years.
An effective cleaning frequency
must be determined by each
agency for their specific systems.
Problem sections of pipe will
need to be cleaned more often
than sections scheduled for certain
types of rehabilitation and inspection
work will require cleaning
prior to the start of work.
Focus
As sewer system networks age, the risk of deterioration, blockages and collapses becomes a
major concern. As a result, municipalities worldwide are taking proactive measures to improve
performance levels of their sewer systems. Cleaning and inspecting sewer lines are essential
to maintaining a properly functioning systems, these activities further a community’s reinvestment
into its wastewater infrastructure.
Inspection program are required to determine current sewer conditions and to aid in planning
a maintenance strategy, ideally, sewer line inspection need to take place during low
flow conditions. If the flow conditions can potentially overtop the camera, then the inspection
should be performed during low flow times between midnight and 5 AM, or the
sewer line can temporarily plugged to reduce the flow. Most sewer lines are inspected
using one or more of the following techniques: Closed Circuit Television | Camera |
Visual inspection | Lamping Inspection.
Televion inspections are the most frequently used, most cost efficient in the long
term, and most effective method to inspect the internal condition of a sewer.
The CCTV camera must be assembled to keep the lens as close as possible
to the center of the pipe. In large sewers, the camera and lights are attached
Sewage and Drainage Cleaning
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