Why does Dominick recommend tank trays for all customers with aboveground storage tanks? It’s simple, really. A release from an aboveground storage tank can cost a homeowner thousands of dollars in property damage and environmental remediation costs. In comparison, a tank tray costs next to nothing and helps minimize the aforementioned damage from occurring in the first place; a simple precautionary measure that pays off in protection and peace of mind. All indoor tanks should have a tray underneath to help contain a minor leak.