Step 4 - What needs to be considered in my design and management, and what will it cost? 4.1 - Border-check - What needs to be considered in my planning, design and management, and what will it cost? 4.1.1 - What planning issues do I need to consider? 4.1.1.1 - What land area and shape can I irrigate with border-check systems? 4.1.1.2 - Can undulating land be irrigated? 4.1.1.3 - What soil types are suitable for border-check? 4.1.1.4 - What are the water supply and quality issues? 4.1.1.5 - What catchment issues do I need to consider? 4.1.2 - What needs to be considered in the design stage? 4.1.2.1 - Do I have a Whole Farm Plan? 4.1.2.2 - What slope, length and width should my bays have? 4.1.2.3 - What should be the size of my channels and drains? 4.1.2.4 - How big should my drainage reuse system be? 4.1.3 - What does border-check irrigation cost? 4.1.4 - How should I manage a border-check irrigation system? 4.1.4.1 - What flow rates should I use? 4.1.4.2 - When should I irrigate? 4.1.4.3 - How much should I apply, or how long do I run water onto the bay for? 4.1.4.4