Nuflow Toowoomba – Blueline Pipe Relining (CASE STUDY)

Nuflow Toowoomba was presented with Nuflow Blueline Job of the Year 2019 at the annual franchisee awards in Queenstown NZ. Using our Blueline solution, Nuflow Toowoomba repaired a drainpipe under a main road that had a break on the bottom of the pipe.

THE PROBLEM

Under the main road in Toowoomba, the drain was damaged by a 400mm directional bore 2 metres deep with only a single access point.

THE SOLUTION

Nuflow pipe repair – 450mm DN x 1200mm long Blueline liner.

35 metre push in over a 350mm hole in the bottom of the pipe.

THE PIPE REPAIR PROCESS USED

1. FIRST VIEW

 

2. AFTER CLEANING WITH REINFORCING STEEL STANDING UP IN THE PIPE

 

3. CUT OFF THE STEEL

 

4. MAKE THE PACKER/BLADDER THAT WOULD BEND IN THE MANHOLE A STAY STRAIGHT WHEN PUSHED UP THE DRAIN

 

5. TESTING

 

6. LINER INSTALLED

 

TIME TAKEN TO RESOLVE THE ISSUE

Completed the repair in 3 days.

DIFFICULTY

The pipe that was broken was a large diameter 450mm concrete pipe. Given the size of this, in general, they are not easy to repair. Also, the pipe was located 2.2m deep in the ground.

Disruption to services, lifestyle, functionality

The pipe ran under the middle of a main road, so by relining there was no disruption to traffic flow at all.

WHY PIPE RELINING WAS THE ONLY SOLUTION

With not knowing of a join/coupling out there to repair that size concrete pipe if it was to use other repair methods such as dig and replace. As if it was to be dug up and replaced, the main road would have had to be shut down or had traffic conditions changed for a minimum of 4 days if not longer.

Also, the break to the pipe was on the bottom of the pipe, so other repair methods you may have had to tunnel in under pipe to repair it. So already located 2.2m underground and then having to tunnel in under the pipe would mean deep shoring to prevent the danger of collapse, bitumen to be cut up and replaced, massive excavation disruption etc.

So, relining the pipe was the only solution. By using a Blueline structural liner which was inserted to create a new pipe inside the existing pipework.

BENEFITS OF USING BLUELINE

Nuflow offers a 50-year written warranty on our Blueline pipe relining product.

Our Blueline cured-in-place pipe lining (CIPP) product successfully passes independent testing against ASTM International Standards. We use the highest quality of manufactured materials to support and guarantee our written warranty.

CONTACT NUFLOW TOOWOOMBA TODAY

Contact our licenced reline plumbers, who will provide you with a tailored solution to fixing your broken pipes from the inside, without the need to dig.

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