Because the growth of the sewage within the 18th and 19 Century was the task of channel lines in fast and safe transportation of sewage. At the time was the density of the marks are less important because it is today. Therefore, the wastewater had a negative impact on the groundwater. Therefore came after the 2nd World War, due to increasing population in the need to have a dense and bigger duct system. The scarce liquid resources at that time reinforced the desire nor as a modern-day maintenance of massive importance. Thus the importance of the canal, the canal renovation and renovation of the canal became increasingly discussions.
Sewer Rehabilitation
When sewage damage can even occur, therefore assume a limited service life. For example, the pipe wall to leak or it may cause deposits that impede a flow process. This damage, however, cannot just happen in older marks, but also in new. This may count, for example, through badly executed construction, inaccurate materials or even a unfavorable water quality. Therefore, good designing before the construction, maintenance, inspection and is sewer rehabilitation after responsibility.
Expiry
To rehabilitate the sewer marks, there are different options. The first is the renewal of the line itself. There are many techniques, like the density can feel recovered in a sewer pipe. For extreme damage (eg fractures, cave) is an excavation of the marks can not be avoided, but for minor damage, it is possible without it. The benefit the following is plainly within the lesser working hours. Whether must be dug up, is in the more severe the damage and place. For example, where a home stands, can not feel dug.
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