How to HARVEST RAINWATER from your roof

Summary

This video script educates viewers on rainwater harvesting, a valuable resource referred to as 'blue gold.' It outlines the essentials for collecting rainwater from roofs, including gutter sizing, debris management with leaf screens, and first flush diverters to ensure water quality. The script also covers critical tank components like access ports, vents, overflows, and outlets, emphasizing the need for critter-proofing and strategies to minimize sludge buildup. It concludes with ideas for utilizing collected water and the importance of following basic rules for a successful system.

Takeaways

• 💧 Water, referred to as 'blue gold', is a precious resource that can be harvested from rooftops.
• 🏠 Regardless of roofing material, it's possible to collect rainwater, but water quality varies with the material.
• 🌧️ Properly sized gutters are essential to handle storm runoff and prevent water from spilling over.
• 🍃 A leaf screen is beneficial for keeping leaves and debris out of the water collection system.
• 💦 A first flush diverter is used to direct the initial dirty water away from the storage tank.
• 🚰 High-maintenance systems like first flush diverters can clog and require regular cleaning.
• 🛠️ Water storage tanks need essential components like access ports, vents, overflows, and insect/rodent-proof outlets.
• 🌿 Algae growth can be prevented by using dark or opaque tanks to block light from entering.
• 📉 Planning for sludge layer accumulation is important, with outlets placed above the sludge layer.
• 💧 In areas with clean air and proper setup, harvested rainwater can be clean enough for drinking.
• 🌿 Overflow from water tanks can be utilized for various purposes like irrigation or toilet flushing.

Q & A

What is referred to as 'blue gold' in the script?

In the script, 'blue gold' is a metaphorical term for water, emphasizing its value as a precious resource.

Why is water collection from roofs considered valuable?

Water collection from roofs is valuable because it allows individuals to capture and utilize rainwater that would otherwise be wasted, potentially reducing dependence on municipal water supplies and saving money.

What factors affect the quality of water collected from a roof?

The quality of collected water can vary depending on the roofing material and the presence of debris that washes off the roof.

Why is it important to have a properly sized gutter for a rainwater harvesting system?

A properly sized gutter is crucial to handle the runoff during heavy storms without causing water to spill over the edge or pour off the roof.

What is a leaf screen and how does it benefit a rainwater harvesting system?

A leaf screen is a device designed to keep leaves and other debris out of the water collection system, ensuring that only water flows through the downspout and into the storage tank.

Can you explain the function of a first flush diverter in a rainwater harvesting system?

A first flush diverter is used to redirect the initial flow of dirty water that contains debris and contaminants away from the storage tank, ensuring that only cleaner water is collected.

What are the key components that every water storage tank should have according to the script?

Every water storage tank should have an access port, a vent, an overflow, and an outlet. These components are essential for maintaining the tank's functionality and water quality.

Why is it necessary to screen all overflow pipes, vents, and outlets in a rainwater harvesting system?

Screening is necessary to prevent insects, rodents, and amphibians from entering the tank, which could contaminate the water and degrade its quality.

How can the growth of algae in a water storage tank be prevented?

Algae growth can be prevented by using a dark-colored or opaque tank to block light, as algae require light to grow.

What are some ways to utilize the overflow from a rainwater harvesting system?

Overflow water can be used to water a sunken basin, supply a home for flushing toilets, or be used in an irrigation system. The tank itself can also serve as a structure for privacy screening or support for climbing plants.

What is the significance of positioning the outlet above the sludge layer in a water storage tank?

Placing the outlet above the sludge layer helps maintain water quality by preventing the sludge from being drawn into the water supply.