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- The tank should be close to the area of cultivation to ensure ease of irrigation.
- The tank should not be near the house or paths to prevent people from drowning in it. Construct a fence around the tank.
- The opening of the tank should be in the direction of the flow of rainfall.
- It is not advisable to obstruct patterns of natural flow of water as there is a possibility of mud and other waste getting into the tank. (The mud filters help only when the water flows directly through them).
- Clear the selected land thoroughly. Flattening the land is important for ease in taking measurements.
- Determine the quantity of water required for irrigation purposes
- The tank should not be more than 1.75m deep in order to withstand the pressure of the water. Low depth makes cleaning and use of the tank easier.
- The tank should have a slope of about one foot from the periphery to the middle of the tank. This helps to absorb the water pressure.
- There are usually various waste items in flowing water. Mud, sand and gravel deposits in the tank will lessen the quantity of water that can be stored in the tank. Therefore, mud-filters are used to reduce the flow of waste items into the tank. This system can last 10 or more years.
