Our client had a 40-year-old steel Braithwaite water tank elevated on a tower. There was severe corrosion and it was leaking badly. On initial assessment the client was told that a replacement was the only option – this meant the project would have been very costly and disruptive. The client came to CWS to see if we could carry out a repair and reline to extend the life of the tank for another 10 years.
Our project manager surveyed the site and was able to determine that this was a viable option. We quoted and a summary of the project is explained below:
- Carry out a full confined spaces entry into the tank.
- Remove all the scale corrosion from the sides of the tank and dispose from the tank.
- Shot blast abrasion to all the internal surfaces and then vacuum out debris.
- Weld repair all holes in the tank.
- Apply a 3 coat WRAS approved lining system to the base and walls of the tank.
- Wait for the lining system to cure, refill tank and return to service.