How To Figure Tank For Roof Rain Water Colection
Besides capture you will need to determine how much water you need i e.
How to figure tank for roof rain water colection. This simple tank calculator will help you determine how much rain you can capture in a year. Rainwater collection calculation formulas and equations roof area ft2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember. Understand five 5 rainwater harvesting rwh variables. These key details are selective to rwh systems and should be considered prior to implementing a system and the rain tank that meets the size for your individual application and needs.
It is one of the factors in determing your tank size. Call toll free 866 926 5603. To estimate how many gallons of water you can collect enter the dimensions of your roof including only the section that drains into your barrel. To work out the surface area simply multiply the length in metres by width for square or rectangular roofs.
Since rainwater is collected from rooftops you will need to work out the total surface area of roof s that will be used to catch rainwater. Check out our rain water collection calculator to answer your questions. The resulting figure represents the surface area of your roof in square metres. Water catchment calculator how much rainwater can you harvest.
Column 1 column 1 column 1 column 1. Need help selecting which tank is right for you. 1 of rain on 1 000 sf roof will yield 623 gallons roof area m2 x precipitation amount mm amount collected liters. Then add the amount of rainfall in inches.
There are two driving factors for this variable historical rainfall and available roof space. Use our water catchment and water usage calculators below to make your selection easier. Annual rainfall in millimetres x roof surface area in square metres roof catchment capacity. Collecting rainwater for your garden is a smart idea no matter what your motivation.
This capacity can be calculated using the following formula. To determine the rainwater tank and gallon size that best suits your unique scenario. Calculating your catchment capacity roughly speaking 1 millimetre of rain over 1 square metre of roof equals 1 litre of water.