Pipe Relining Process

How does pipe relining work?

Damaged pipe inspection

Inspect the pipe damage

The first thing we need to do is find out exactly what is wrong with the pipe. To achieve this we send down one of our drain cameras to see what is happening. We look for any blockages etc that may need clearing and any junctions that we need to be aware of.

We then decide on the best way to ready the pipe for relining.

Clear blocked pipes and clean

If we find any solid intrusions or damage to the pipe we can use a robotic cutter to remove them. These will cut through pretty much anything, including steel and concrete.

Then we use a high-pressure water jetter to clear the pipe of any debris and blockages as well as clean the pipe wall to ensure a good bond.

Robotic cutter to clear the blockage

Fix the Problem, Not just the Symptom

CCTV pipe inspection - ready for relining

Check pipe is ready for relining

Before we start relining the pipe, we send down our drain cameras again to do one final check. This is to ensure that we have removed all intrusions and the pipe is clean of debris and ready for relining.

We also finalise exactly how we are going to reline the pipe and how much lining we need to prepare.

Preparing the pipe lining

We measure the length of lining required and get it ready for insertion in our purpose built truck.

When using inversion pipe relining this involves mixing the epoxy resin with the hardening agent. This resin is then poured into the liner which is rolled repeatedly to ensure that the resin is evenly distributed along the entire length and impregnated into the material.

GFRP UV pipe lining is pre-impregnated and ordered to the required length.

Pipe liner preparation in the truck
Inserting inversion pipe lining

Inserting the pipe lining

Inversion pipe relining uses a special inversion drum to blow the liner into the pipe. This uses compressed air to not only insert the liner into the pipe but to also invert it (so it becomes inside out). Once we have finished this process, the inside of the liner that had the resin impregnated is now on the outside and pressed against the original pipe using compressed air.

GFRP UV pipe relining requires us to pull the pipelining into position using cables and winches etc.

Curing the pipe lining

The team now need to wait for the resin to cure into a hard protective coating along the pipe.

Using inversion pipe relining this can either be left to cure by itself, or we can speed up the process using hot water.

GFRP UV pipe relining requires us to insert a special UV lighting rig to cure the pipelining to full hardness.

Curing the pipe lining with UV
Inspection pit showing pipe lining

Cutting out junctions and inspection pits

Once the team have completely lined the damaged pipe, we need to cut out any junctions or inspection pits.

With inspection pits, we can generally do this from the surface with a grinder or similar. However, with junctions, we need to use a robotic cutter.

Completing the process

The damaged section of pipe has now been completely relined.

One final check is carried out to ensure the pipe is fully covered and as good as new (maybe even better), providing your property with 50+ years of protection.

This involves both a visual inspection with a drain camera and a check for leaks with our leak detection equipment.

Completed pipe lining

For complete pipe relining and drain repair services contact the Reline Solutions team on 0403 355 550 or fill in our quick online quote request to find out more.

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