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How to Harvest Your Own Rainwater Today

2nd June 2015
By Aaron Pace

If you have stumbled upon this site and clicked here to find out what the heck we’re talking about, then this is the article designed to get you right up to speed with the benefits of capturing your own rainwater.

Are you ready? Let’s get started.

Obviously, a water tank is going to be the most beneficial way to harvest your own rainwater, with the most positive results in your favour.

Basically, a rainwater tank will be set up to capture all the rainfall hitting your roof. If you work out the surface area of your roof, you can attribute 1mm of rainfall per 1m2 of roof surface area to approximately 1L of water captured in your tank.

Why would you want to do this? Well, chiefly, this saves water for the environment, and costs to you in your water bill. Perhaps it would be beneficial to review just how much water everyday activities can consume:

Toilet flush

10 litres

Toilet (dual cistern) half-flush

5 litres


100 litres

Ten-Minute Shower

200 litres

Standard dishwasher load

50 litres

Standard washing machine load

150 litres

Drinking, cooking and cleaning

10 litres (per person, per day)

Hand basin

3 litres (per use)

Garden sprinkler per hour

1000 litres

Garden dripper per hour

4 litres

Car washing with hose

200 litres

Hosing driveway

100 litres

Brushing teeth with the tap running

5 litres


When you really think about it, using our cleanest, purest drinking water for activities like hosing the driveway, seems rather wasteful. If you diverted rainwater to service only the toilet and laundry, you’re saving literally tens of thousands of litres of water per year.

It makes more sense, right?

Talk to us today about your very own rainwater tank solution.

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