You kinda offer a solution by telling us about the annual inspections. There are also water alarms that go in the pan under a water heater for slow leaks. I've

You kinda offer a solution by telling us about the annual inspections. There are also water alarms that go in the pan under a water heater for slow leaks. I've also seen them placed in areas with tile floors and a drain just in case. Sounds like much of the decentralized system damage from water heaters is customer neglect.