How we can help
Our leak detection survey uses the latest nonintrusive
techniques for surveying underground pipework.
It will typically combine manual and electronic
detection methods to help identify problems.
Manual checks might involve:
- visual inspections
- valve checks
- step testing.
While some typical electronic methods include:
- correlators
- ground microphones
- data loggers.
Once we find the leak we can help with a full repair
service, up to and including full mains renewal.
An underground leak can go undetected "regardless of size".
Your meter is read approximately every 90 days.
It can be 130 days before you become aware of a high bill!
Small service leaks average in the range of 200 ltrs/hr to 800 ltrs/hr.
At 200 ltrs/hr the cost can be between € 640 and € 960 per quarter.
At 800 ltrs/hr the cost can be between € 2500 and € 3800 per quarter
This equates to between € 2500 and € 15400 p.a.
The average size burst on a 4" main is 7m3/ per hr but
this can be as high as 30m3 or 40 m3 per hr and not show up!
At the lower end 7 m3 per hr is equal to € 15120 on your bill.
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Excessive pressure is directly related to the frequency of
"burst rate" and volume lost. We provide a pressure
management service.
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You may require additional metering for management or
revenue purposes. This must be done with an understanding of
both meter sizing and design layout to ensure accuracy. Water
Management and correct system design is a cost effective
management tool.
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We can measure water usage very accurately over extended
periods of time (usually one week) to enable assessment of
both leakage and wastage on your system. Our flow logging
and report provides you with a picture of system performance
together with the flow data. This is an essential management
tool as it provides you with a key measure of how much
your water leakage and wastage is costing you. This cost is
the primary consideration that most businesses would use
when determining how much they should invest in water
management initiatives.
Most water meters have electronic pulsed output to enable
flow-logging to be undertaken. Magnetic flow meters
determine water flow by disturbance to their electromagnetic
field. These tend to be employed on large bore pipe work.
Flow loggers can be hard wired to your desk top PC to
provide you with constant access to your flow data. In more
remote locations meter data transmission via'phone lines is
possible. We supply and install a full range of water meters
and loggers and can advise upon the most effective place to
install them.
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We can provide daily, weekly and/or monthly logging of
your demand profile. This can be done either manually or
remotely.
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Detailed reports specific to each individual client are
created and tailored to requirements and corporate formats.
Manipulation of the site data allows easy understanding
with cost justified proposals for remedial works. Whether
the problem is associated with underground pipework and
infrastructure or internal plumbing, a range of services is
offered to effect repair.
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This involves using electronic tracing equipment, including
Radio Signal Induction and Ground Penetration Radar
to identify the position of the underground utilities /
watermains. Where applicable the watermain pipework
connectivity will be further confirmed by flow and pressure
"step-testing" and acoustic detection methods such as Noise
Correlators and Ground Microphones.
The findings from the survey are clearly marked on the ground,
recorded by digital photographs and updated manually onto an
existing hardcopy site layout map. The data gathered during
fieldwork can also be electronically recorded using GPS equipment
and updated on to digital Ordinance Survey maps.
Pipe tracing is undertaken using Radiodetection RD500, Cat and
Genny and flexitrace locators. These use a variety of techniques to
detect and map underground pipework, in particular the generation
of a radio signal that is transmitted through the pipework which
is then picked up by the detector enabling a very accurate
identification of the location of an underground asset. Pipework
buried at depths of up to 3 meters can be detected using these
methods. Step testing involves the isolation of discrete zones, then
the monitoring of the variation of consumption within these thus
enabling the particular zone(s) with the leak to be identified and
isolated.
Top sounding-standard industry techniques using sounding and
listening equipment. This ranges from the simplest technique that
involves the use of a sounding stick pressed to the engineer's ear
through to more sophisticated electronic detection systems using
both noise and heat.
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Transfer testing through the revision of supply arrangements, changing
zonal areas in conjunction with step testing. This activity aids the
process of leak location by positional iteration. This is particularly
useful where the zones cannot be easily separated.
Monitoring Service
In addition to the reactive services offered we also provide usage
monitoring service. This daily check is carried out via a remote
reading device (transponder). The monitoring service can be used as
an early warning system to detect water main bursts, reducing water
loss and excessive bills.
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