One of the least glamorous and unnoticed of all utilities is the humble sewer line. It works quietly in the background. Until recently, when the drain line developed a problem everything came to a standstill. The ground above had to be dug up so it could be examined to locate the problem. Once the line was repaired there was additional cost to restore the surroundings to their former state. With the introduction of trenchless sewer repair MN the surroundings are undisturbed thereby avoiding the huge cost of restoration.
Drain lines are laid under gardens and lawns and hence can be damaged by the roots of plants and trees. The joints of older pipes were vulnerable because the small leaks attracted the roots which entered through the leaks. As they grew bigger they cracked the pipes and hindered the smooth flow. There are a variety of repair methods which come under the definition of trenchless sewer repair MN categorized as Pipe Bursting or Pipe Relining.
The Pipe Bursting method is used to replace an existing pipe with a new one. The new line, usually of heavy plastic, is attached to a torpedo shaped steel head called the bursting head. Two openings are made at two points and the bursting head is threaded into the sewage line with a steel cable. The bursting head breaks the old pipe allowing the new pipe to replace it.
For repairs where there is a leak in only one place a patch needs to be applied. This is done using a similar process of threading a new line. However, the existing pipe is left undamaged and the replacement is made of lining material. This liner is pulled to the right point and heat or ultraviolet light is applied to the liner. This makes the liner stick to the walls of the pipe making a perfect seal. This is the Pipe Relining method.
Deciding which method to use is done by first analyzing the problem. A small video camera is inserted into the pipe and used to pinpoint the fault. The fault can also be examined to see if it is due to a root or broken pipe etc. If there is a root, it will need to be cut away by using a rotor before repairing the line.
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Sometimes the drain line is not damaged but years of accumulation may cause a blockage. In this case a simpler technique called hydro jetting can be used. High velocity water power is used to blast away the block and scour the inside of the conduit leaving it smooth.
There are occasions when trenchless methods may not work. Sometimes the damaged pipe can sag significantly and if it is surrounded by hard soil such as shale, the bursting head may come out. Also if there are other utilities laid in close proximity, this method could damage them.
There is no doubt that trenchless sewer repair MN is one of the most useful innovations of the modern era. The fear that a sewer problem could destroy the beauty of the home by uprooting the gardens and digging up driveways no longer haunts the homeowner. By using powerful winches and drills, the existing sewer line is used to guide the installation of the replacement pipes leaving the rest of the area unaffected. The repair time and cost is reduced considerably but, what is most important is that all activities can continue without being affected.
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