Water Calculator

 

What do the calculators do?

The water calculator has been designed to be easy to use and take a couple of minutes of your time. It will provide an approximate answer as water consumption on an individual basis can vary.

See how much water you could harvest by answering the following 7 questions.

How many people [including children] in the houshold?

   
    Litres Per Day Litres Per Year

What do you want to use the catchment water for?

Garden Minutes per day usage
Washing machine Loads per day
Washing vehicles/boates etc  
Drinking water  
Toilet flushing  

Total litres required

   
         

How much water can you harvest?

Click here for a map to give a guide to your average annual rainfall or enter your own value Average annual rainfall mm
What is the area of your roof that will be connected to the tank? Square metres
eg Small 80m2, Medium 150m2, Large 200m2
m2

Total litres able to be captured

 
         
         
         
         

Tank and installation requirements

Gravity feed or Pump required?
Would tank need to be installed in a confined area?
What is approximate gutter height so rain will run off roof into tank? [average is 2500mm]
Do you have any access constraints that may affect transportation of a tank to your site?
     
         
         
       

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