The operational maintenance manager of Milan contacted Nuflow Technologies because the relaxed environment was being disturbed by leaking 50 mm diameter pipes that fed the lagoon pool and the hot tub.
Nuflow visited the site to carry out a CCTV inspection of the leaking pipes. The company encountered extremely limited access to the pipes as they were located in an underground rainwater holding tank, which needed to be partially emptied so that the pipes could be exposed and disconnected.
The CCTV investigation showed the problem as being badly cut and glued joints, along with evidence of concrete in the line, which needed to be cleared before being relined.
The next major issue: there was no downstream access due to the complexity of the pipe layout from the pool and hot tub. This restricted the methods of installing the liner to a process unique to Nuflow.
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On the day the works proceeded, the tank was once again partially emptied, then an installation team member, wearing a wet suit, entered the tank. The single access liners had been specially made and tested the day before, and after being ‘wet out’ they were passed into the tank and inserted.
Considering the alternatives
The alternative solution of excavating and replacing the pipes was never an option due to the location, disruption, timing and costs involved.
Nuflow installed the liners in the morning and pulled them out by mid-afternoon the same day, with minimum impact on the use of the pool and hot tub.
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