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6 Steps to Reline a Pipe: Pull-in Place (PIP) Method

plumbermascot Pipe-Lining

Pipe relining is a plumbing task that should only be done by professional plumbers. Not only do you need heavy utility machinery but the process and preparation itself are pretty intricate. Pipe relining is not up for DIYers but for better understanding on the process of relining, here is the procedure simplified in 6 steps:

Step 1: Pipe Inspection
CCTV cameras are snaked down the pipelines that should be relined to see what condition the pipe is in. Through this, the plumber can see how much damage the pipe has acquired. The damaged found inside old pipe could vary from pipe aging, root infestation, pipe corrosion, gaps and sections missing in the pipe, misalignment, to holes. After this, the plumber then thinks of the best way to get those that are blocking the sewer out of the pipe. In order for new pipe liner to effectively do its job is if it is situated perfectly.

Step 2: Pipe Cleaning
After the initial inspection, the plumbers then use high-powered water jets to flush any object inside the pipe that can block the relining process. This is also used to descale the inside of the pipe to have that smooth finish and ready to be relined.

Step 3: Relining Prep
The specially-made and measured liner is then assembled together with the bladder and inserted into the pipe. The assembly is carefully aligned with the part of the pipe that needs patching up. Though this sounds intricate, you don’t need to worry since machines do most of the job. This process is called PIP Pipe Relining. Not the same thing happens with the CIPP Pipe Relining process.

Step 4: Curing in the Pipe
After making sure that the liner and bladder assembly is in place, the plumber pumps compressed air into the bladder to inflate it. Once the bladder is inflated, the epoxy liner bonds itself to the walls of the host pipe, taking its form and curing itself in to create that pipe-within-a-pipe effect.

Step 5: Remove the bladder
After the pipe has cured-in, the bladder is then diffused and pulled out of the pipe. This leaves the new pipe in place.

Step 6: Post Inspection
A CCTV camera is then inserted into the pipe to check if the epoxy liner did set in place. The camera scans for possible miscalculations and other anomalies that might have happened inside the pipe with the liner was curing in. Some plumbing services company uses the CCTV footage as a detailed report and will submit them to the owner for assurance that the job was done.

As a result, you now have a sturdy pipe in place of the old one with lesser hassles in installing, cheaper cost, shorter time needed and a smooth-walled pipe reinforcement. The ‘pipe-within-a-pipe’ technology assures you a seamless coverage for your pipes that not only prevents leakage and cracks but also hinders root infestation in the years to come. In the inside, epoxy finish is much smoother than that of cast iron pipes. This means that with smoother and granule-free pipe walls, it is unlikely that blockage due to calcification will occur.