Leak Detection Instruction
24
4
LEAK DETECTION INSTRUCTIONS
When a pipe carrying water has a leak, water tends to spurt out of the leak point and, in
general, generates the following four types of sound:
-
Water flow sound
-
Impact sound
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Friction sound
-
Pipe vibration sound
Combined, these sounds constitute the leakage sound.
Where there is no leakage, all the user can hear is the sound of the water flow.
The texture of the leakage sound generated by underground pipes depends on numerous
parameters, the most important of which include:
-
Size of the leakage source (size of the hole or crack)
-
Water pressure
-
Pipe material
-
Burial depth of the pipe
-
Pipe diameter
-
Soil structure or type of flooring
It should be noted that in case the pressure of the water inside the pipe is around 2
bar or more, the water leakage will be loud and the less the water pressure is, the
less noise the leakage generates and the harder it will be to detect the leak point.
4.1
The Relationship between Water Pressure and Leak Noise
As shown in the following figure, this is a direct relationship, therefore, at higher pressures
the leak noise is louder and easier to detect.
