How do you make a rooftop rainwater harvesting model?

How do you make a model of rooftop rainwater harvesting?


  1. You can take a cardboard box to make a model house.
  2. Punch two holes in a two-liter bottle, one at the bottom and other at the top.
  3. Tape the ruler at 90 degree angle over the box.
  4. Place the flat, hard and waterproof object as a slope.
  5. Place the pop bottle under the edge of waterproof roof.

How do you build a rainwater harvesting system?

The easiest way to harvest rain is through a rain barrel (make your own from a large trash can or an old drum) linked to a pipe fitted to collect rainwater from the rooftop and verandah of the house.To prevent the barrel from becoming a mosquito breeding ground, fasten a tight-fitting top to it, and screen the ends of …

What are the three methods of rainwater harvesting?

Three methods of rainwater harvesting followed in different regions of India for:

  • Bamboo dripping irrigation system in Meghalaya.
  • Storing rainwater in underground ‘tankas’ in Rajasthan.
  • Kuls or guls are the water diversion channels built mainly in the Himalayan region for agricultural purposes.
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What is a simple method of rainwater harvesting?

Barrel harvesting

It is the simplest method of rainwater harvesting. There is generally a drain on the rooftop or terrace, to which you connect a strong pipeline. Let this pipeline be connected to a large barrel. You can also have multiple barrels if it is a high rainfall receiving area.

Who made rainwater harvesting?

Rainwater harvesting may date back to 6,000 years ago in China. Evidence is available for rainwater collection at least to 4,000 years ago. Water harvesting was used in China from the 3rd millennium BC.

What is rainwater harvesting with diagram?

Rainwater harvesting is the process of collecting rainwater from surfaces on which rain falls, filtering it and storing it for multiple uses. Rainwater harvesting puts the supply of water back to normal levels. It is the collection and storage of water from surfaces that rain has fallen upon.

What are the two main techniques of rainwater harvesting?

There are two ways of harvesting rainwater, namely; surface runoff harvesting and rooftop rainwater harvesting.

What is the best way to collect rainwater?

6 Ways to Collect Rainwater

  1. Barrel Systems / Cisterns. An average sized rain barrel holds 50 gallons. …
  2. DIY Rain Barrel. As long as it’s waterproof and can hold liquid, you can make a rain barrel out of anything. …
  3. Readymade Barrels. …
  4. Larger Catchment Systems. …
  5. Living or Green Roof.


California – No regulations or laws against rainwater harvesting. Colorado – The only state that it is completely illegal to harvest rainwater. Other than that each house is allowed up to 110 gallons of rain barrel storage. Connecticut – No regulations or laws against rainwater harvesting.

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What are the types of rain water harvesting?

7 Different Types Of Rainwater Harvesting Systems

  • Water Butt. One of the most basic types of rainwater harvesting systems; water Butt collects rainwater in a container from natural rainfall and/or drain pipes. …
  • Direct-Pumped. …
  • Indirect Pumped. …
  • Indirect Gravity. …
  • Gravity Only. …
  • Retention Ponds. …
  • In-Ground Storage.

What are the modern methods of rainwater harvesting?


  • 1.1 Absorption pit method. …
  • 2 Absorption well method. …
  • 2.1 For Individual Houses. …
  • 2.2 Rainwater Harvesting in Group Houses. …
  • Groundwater Dams. …
  • 3.2 Sand storage dam. …
  • Ferrocement Technology.


What are the water harvesting techniques?

A number of water harvesting techniques are based along contours including: contour ploughing; contour ridges; stone lines; grass strips and terraces. The technique used depends on the steepness of the slope, soil type, conditions, crops grown and other factors such as the availability of labour.

What can rainwater be used for?

Uses for rainwater

There are many things you can use your rain water for in and around your home. Many people use it to water their gardens and plants. You can also use it for showering, washing your car, doing laundry, or watering the grass.

Can you drink rain water?

It is possible, therefore, for us to drink untreated rainwater. This is because rainwater is pure, distilled water evaporated from the sun – nothing else. However, when rainwater falls from the sky, substances from the air and land melt into the rainwater. … This water (groundwater) is relatively safe for drinking.

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Where is rain water normally stored?

A rainwater tank (sometimes called a rain barrel in North America in reference to smaller tanks, or a water butt in the UK) is a water tank used to collect and store rain water runoff, typically from rooftops via pipes. Rainwater tanks are devices for collecting and maintaining harvested rain.

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