When you have your tank and tower regularly inspected, small issues can be identified and addressed before they become huge problems, saving money in the long term. Therefore, the exterior needs to be inspected no less than every five years. If adverse weather events have occurred and the tower has endured more abuse than usual, it’s good to have it inspected more frequently. Climate has much to do with how often the tank is inspected. KLM will work with you to establish a schedule that works according to your needs and budget.