We already know the types of pipe leak detection systems, it will be interesting to understand how to fix such leakages and therefore repair them.
It is, of course, important to detect the leak, but also equally important is fixing the leaks.
According to the latest industry reports, leaky pipes are certainly threatening to cast major parts of the world into drought. One of the primary examples of such leakages is profoundly found in Britain. Our article today details the ways in which you can repair a pipe.
Repairing a pipe
To repair a pipe, the methods are open cut and trenchless. Such methods include replacing the pipe, replacing only the part of the damaged pipe and then monitor the pipe as a whole, replacing parts as they break, repair the entire length of the pipe with a liner as well as repair specific areas with seals.
The traditional method that is prevalent throughout the world is pipe replacement through an open-cut method. This involves digging out the entire pipe with a trench, re-routing the material that passes through the pipe (generally above ground), replacing the pipe, then filling the trench in and routing the material back through the host pipe.
However, in order to understand the importance of trenchless solutions, it is important to understand the costs of the open-cut method and compare them with the trenchless methods.
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Open cut method
This involves scraping down and exposing the existing pipe. This will enable it to be repaired and eventually backfilled. Following are normal costs associated with pipe rehabilitation:
- Direct costs paid by owner: These include contractor costs, engineering costs, bidding costs, and contract to management costs. When replacing a pipe entirely, the cost is significantly impacted by the size and location of the pipe.
- Indirect costs to owner: These are compensation claims by customers and compensation for contingent damage to property. These costs can become high when one is digging a long trench, disrupting normal life in an area, and working around people.
- Quantifiable and non-quantifiable costs to society: Traffic delay, business disruption, accident costs, pollution, environmental impact, quality of life make up the most important of the quantifiable and non-quantifiable costs to society.
This method is also called the underground method of construction, which uses a substructure construction. It has been used since earlier times in special cases, such as greater cover depths, in confined or heavily used streets and when crossing railway tracks or watercourses. The costs associated are as follows:
- Direct costs paid by owner: While an entire pipe replacement can take months, a trenchless repair can take a few days. This then leads to lower contractor costs, engineering costs, bidding costs, and contract management costs.
- Indirect costs to owner: Since trenchless solutions are less intrusive, possible costs arising from compensation claims by customers and compensation for contingent damage to property are much less.
- Quantifiable and non-quantifiable costs to society: An estimate of the social costs for open cut projects outside of Australasia have varied from 6% to 78% of the direct and indirect costs of the project trenchless social costs, on the other hand, have been estimated much lower at only 3%.
There are a variety of different solutions that fit in the category of the trenchless method. Two solutions that have been around for almost 40 years are the cure-in-place pipe method and the spot and joint repair method with a seal.
What is CIPP?
CIPP (Cured-in-place pipe) refers to liners that are coated with a resin and inverted through a pipe using pressure and then cured using ambient temperature and pressure, UV, steam, or heated water. This liner, when cured, is sealed to the host pipe.
What is Spot and Joint Repairs?
When a joint or a spot must be repaired, and the pipe is accessible, it may be an option to place a seal to repair the damage, rather than running a liner. Seals can be cheaper, faster, and more precise than liners, plus the initial investment for equipment is less than installing a liner.
These different methods of pipe repair have existed for years, and there are certainly many companies that work in this space. Amex Sanivar provides both liners and seals. Our company uses CIPP technology and pull-in technology on its liners.
So, the entire journey doesn’t stop after detecting leakages, the process continues then to fixing and repairing the damage as well. There are different methods to do this: the open-cut method and trenchless method.
Over the years, the trenchless method has gained in popularity as technology has improved. But, a trenchless solution may not always be the best. No matter what solution is chosen for repairing pipes, it is clear that leaking pipes, inefficient systems, and crumbling infrastructure across the world will be a problem that faces the world for years to come.
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