Such structures may not already be fitted with guttering and so it is likely that you will have to install it to collect water into a rain barrel.
Rainwater harvest from gutters.
The same rainwater harvesting methods that are used to harvest rainwater from the roof of your home could also be used to collect rainwater from a shed garage or other garden building.
Avoid containers that once held petroleum or soap.
Modify an existing downspout to divert water into your rain barrel.
Rainwater harvesting systems utilize your home s gutters to capture water then store the rainwater in above or below ground tanks for later use in landscape irrigation car washing and decorative fountains or as non potable water for toilet flushing laundry and indoor fire sprinkler systems.
Make rain barrels out of food grade barrels to help keep harvested water clean.
Rainwater harvesting is collecting the run off from a structure or other impervious surface in order to store it for later use.
You can really take this as far as you want.
To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches.
Rainwater harvesting quick tips.
Traditionally this involves harvesting the rain from a roof.
Rainwater harvesting systems provide distributed stormwater runoff containment while simultaneously storing water which can be used for irrigation flushing toilets washing clothes washing cars pressure washing or it can be purified for use as everyday drinking water.
Here s a handy little calculator to help you estimate how much rainwater can you harvest from your roof.