Water tanks have a reputation for being durable and reliable but even the most robust structures can have problems that threaten their ability to hold water. The good news is that municipal officials and private users can take steps to head off such problems with regular inspections and maintenance work.
Corrosion is a common problem that can lead to degrading a tank. If corrosion is caught in the early stages it can be repaired at a lower cost, Stein says. He recommends inspecting all surfaces of the tank every year, including the roof and access hatches, for rust spots that may require repair.
Another potential issue is pitting, which shows up as small holes in a specific area of the tank’s interior or exterior. If there are signs of pitting, it’s a good idea to take the tank out of service for inspection and repairs, Stein says.
A good inspection should also include an examination of the tank’s filters and all inlet and outlet valves. It’s a good idea to look for screens that keep pests out, like birds and rodents, as well. Lastly, it’s essential to check the structure for deterioration and cracking.
Many water utilities use a contracting company to perform annual maintenance on their tanks and towers, Pearlman says. However, it’s important for the municipality to be involved with these contracts and to make sure that they specify exactly what work is being done. A utility should also be aware of the contractor’s record on safety issues, he adds. water tank maintenance