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The Problem With Epoxy

The Problem With Epoxy
Epoxy pipe lining is often viewed as an alternative to replacing the old piping with a completely new system.  In theory, the lining process involves coating the inside of the pipes with an epoxy resin to seal off pinholes and corrosion, creating a lasting solution to solving your pipe problems.  That’s the theory. In practice, the challenges with epoxy are numerous: For one, there is no way to know how well the epoxy adhered to the inside of the pipe, and if an even coat was achieved, without cutting into the pipe. Second, if a leak occurs at a future date, repairing an epoxy-lined pipe is very difficult. The resin cannot take heat, and application of a torch to try and solder in a new piece of pipe or a fitting ruins the integrity of the lining at that location. Likewise, use of a “press-fit” connection (the solution by many epoxy companies for epoxy-lined pipe repairs) may crack the epoxy lining at the point of the repair, allowing water to get between the pipe and the lining, further corroding the pipe. The initial epoxy lining process itself creates a certain amount of pressure on the pipe walls, and may blow out at weak spots or threaded areas. And lastly, critical elements of the piping system are often excluded in an epoxy lining job. Because of these challenges, SageWater encounters failed epoxy lining jobs, or partially completed epoxy lining jobs, that now require a full pipe replacement.  These, as well as other epoxy......
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