MTS relines pipe in confined space for Bluewater

MTS were called to assess a serious leak beneath the floor of the Giraffe restaurant at the Bluewater shopping centre near Dartford, Kent.

Jason Downer, civils specialist in the MTS business development team, visited the restaurant to carry out a thorough survey of the site.

Jason said; “The leak was in a tricky location with pillars and obstacles making access and egress difficult to negotiate. We decided that a resin patch to seal the defect and stop the leak was the best option. Other methods would have required substantially more time, man power and materials at a far greater cost to the customer.

Because of the location of the leak and surrounding obstacles, the work was carried out under confined space working conditions and regulations. MTS is a leading specialist in confined space entry and rescue work.

The first step was to check the air quality in the void before the lead engineer made entry to set up lights and working materials. Two additional operatives supported the entry team as a City and Guilds qualified rescue crew, certified for First Aid and Stretcher Rescue.

The team used CCTV for an internal view of the pipe’s condition and to take measurements for the resin patch used to repair the lining of the pipe.

Once the patch had been prepared and wrapped around the packer, the team returned it to the confined working area. After carefully placing the packer into position within the affected pipe, the team then inflated it to a constant pressure of 2.5 bar for two hours and fifteen minutes, until the repair had fully cured.

The team deflated and removed the packer before using CCTV to review the effectiveness of the patch liner.

The repair was a complete success, sealing the faulty section of pipe and stemming the leaking liquid. It also helped to reinforce the integrity of the suspended pipework by reinforcing a compromised joint.

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