RAIN WATER HARVESTING

Check dams are linear structures constructed perpendicular to concentrated flows across the waterway to control erosion by reducing the velocity of the flow. They retain floodwater and trap sediment, best used when the drainage area is 10 acres or less.​

Storage tanks are containers that hold liquids, compressed gases (gas tank), or mediums used for the short- or long-term storage of heat or cold.In the USA, storage tanks operate under no pressure, distinguishing them from pressure vessels.