Less disturbance of tra? c and reduced smell Sewer networks in many European towns are being inspected on a regular basis so cracks and disruptions can be identi? ed early. When it is required to repair the sewer, renovation in urban areas can be a big challenge to the municipality, as it may trouble the inhabitants nearby in terms of tra? c disorder, dust, noise etc. Local authorities do not hope to receive angry phone calls from the res

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