AOFS Reference Implementation: 10 m Concrete Water Tower with 5,000 L nylon tank. Designed for simple, off-the-shelf steel construction using locally available materials.

This blueprint is non-normative and intended as a practical, low-tech reference for smallholder farms, NGOs, or off-grid installations.

• Store 5,000 L of water in a tank elevated ~10 m for gravity-fed irrigation
• Provide a higher-head water source for farms requiring greater pressure
• Integrate optionally with AOFS Field Controllers for water level monitoring

• 10 m high simple reinforced concrete frame tower
• Supports a standard 5,000 L nylon tank (locally available)
• Open-top tank for inspection and filling
• Integrated Ladder for maintenance
• Tank is secured to the tower by being fully enclosed by a brick wall
• Designed to be assembled with basic tools and local labor

• Tank outlet feeds irrigation zones by gravity
• Isolation valve allows manual control
• Overflow routed safely to drainage or secondary container
• Optional integration with a small pump for secondary irrigation zones

• Ladder and hatch should be used carefully
• Ladder should be protected from being accessed by children
• Ensure the foundation is anchored down to the bedrock
• Ensure good quality concrete and enough reinforcing steel of acceptable quality
• Overflow and basic manual valve operation prevent flooding

• Tank filling and irrigation can be done manually if electronics fail
• Paper-based logs or measurement sheets supported

• Optional water level sensor for Field Controller logging
• AOFS control can read tank level for irrigation scheduling
• Controller can enforce a minimum water level to ensure the tank remains gravity-stable against wind forces
• Manual bypass always available — irrigation continues even if electronics are offline

• This design is simple and locally adjustable, so traditional versioning does not really apply
• Builders may adapt frame dimensions, tank placement, or assembly method according to available steel, tools, and skills
• Basic stability and functional operation should be maintained