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Case Study: High School. HDPE Rainwater tank repair. 3rd party system

High School. HDPE Rainwater tank repair. 3rd party system, Newton Mearns

RTC were asked to repair an 85,000L underground rainwater harvesting tank at a School in Scotland. 

On inspection we found a patch repair had been up in place, presumably at installation stage which had failed. We also discovered that two join areas had failed, not just the one as first thought by the client. Both failed join sections were letting a considerable amount of ground water and sediment into the tank.

The works required were very different to the initial agreed scope of works. We liaised with the client, agreed an amended scope of works, managed expectations and despite the odds, achieved a water tight tank by the end of the week.

Anyone who has worked with plastic knows how difficult it is to repair a plastic tank once installed underground. Some might say almost impossible. The plastic (in this case HDPE) needs to be bone dry and ideally welded from both sides of the tank wall.

The floor of this tank was sited 5 meters below ground level so welding both sides of the tank wasn’t an option. Also, the two failed joint areas had ground water flowing through them. Luckily, through previous experience, we have methods of managing the ground water ingress.

We take pride in our work and aren’t easily deterred. It took a little longer than we anticipated but we delivered.

Should you have a damaged tank and are in need of RTC’s professional tank repair services, please call the office on 01636 904943.

Thank you for your interest.