WATER TANK OR STORAGE RESERVOIR

摘要

PROBLEM TO BE SOLVED: To provide a water tank or storage reservoir subjected to a corrosion preventive measure capable of perfectly preventing the corrosion of a metallic roof by corrosive gas over a long period with an easy and inexpensive construction. SOLUTION: In the water tank or storage reservoir having the metallic roof 1, a ceiling plate 15 made of a titanium thin plate or a titanium alloy thin plate is arranged on the inner surface of the metallic roof 1. The ceiling plate 15 is preferably arranged by bonding the titanium thin plate or titanium alloy thin plate by resistance welding.