Quick Answer
To create a rainwater collection system in a tree shelter, you'll need a sturdy platform, gutters, and a water storage container. Ensure the system is designed to handle the amount of rainfall in your area and is properly secured to the tree. This will allow you to collect and store rainwater for non-potable uses.
Designing the Platform
When designing the platform for your rainwater collection system, consider the diameter of the tree trunk and the desired size of your collection area. A general rule is to use a platform with an inside diameter equal to 75% of the outside diameter of the tree trunk. For example, if the tree trunk is 24 inches (61 cm) in diameter, the platform should be at least 18 inches (46 cm) in diameter. This will provide a stable surface for the collection system and prevent damage to the tree.
Installing Gutters and Downspouts
To collect rainwater, you’ll need to install gutters and downspouts on the platform. Use a 1-2 inch (2.5-5 cm) wide gutter material, such as aluminum or PVC, to ensure a smooth flow of water. Space gutters 12-18 inches (30-45 cm) apart to prevent water from spilling over the edges. Install downspouts that are at least 1 inch (2.5 cm) in diameter to direct water into the storage container. Use a gutter guard to prevent debris from entering the gutters and clogging the system.
Storage Containment and Overflow
For the storage container, use a durable, watertight material such as food-grade polyethylene or stainless steel. A 50-100 gallon (189-378 L) container is a good starting point, depending on the size of your platform and the amount of rainfall in your area. Ensure the container has an overflow valve to prevent water from spilling over the edges. Install a first flush device to divert any debris or contaminants from the roof into the overflow, allowing clean water to enter the storage container.
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