Rainwater is collected from a roof like surface and redirected to a tank cistern deep pit well shaft or borehole aquifer or a reservoir with percolation.
Roof based rainwater harvesting.
Collecting rainwater runoff from roof surfaces which usually provides a much cleaner source of water that can be also used for drinking is called roof based harvesting while collecting rainwater runoff from land surfaces is called land based harvesting.
Dew and fog can also be collected with nets or other tools.
To calculate how much rainwater that you can harvesting use the equation below.
The practice of collecting rainwater from rainfall events can be classified into two broad categories.
Rainwater harvesting rwh is the collection and storage of rain rather than allowing it to run off.
From rainwater the practice of collecting rainwater can be classified into two categories such as.
Rooftop rain water harvesting is the technique through which rain water is captured from the roof catchments and stored in reservoirs.
Wondering how much rainwater you could collect off your roof.
Use this rainwater harvesting calculator to find the answer.
Rainwater harvesting is an excellent means of supplementing water for use on site if the process is permitted by state and or local laws.
The image below shows how differences in roof slope do not change this building s catchment area.
The main objective of rooftop rain water.
The area is based on the footprint of the roof which can be calculated by finding the area of the building and adding the area of the roof s overhang.
Using rainwater where appropriate conserves potable.
Land based roof based.
As your roof surface is the catchment area for harvesting rainwater it s important to know how large or small it is so you can calculate how much rainwater you can expect to harvest.
Land based rainwater harvesting occurs when runoff from land surfaces is collected in furrow dikes ponds tanks and reservoirs.