What Size Water Tank
The usage chart below will give you an indication of how much water you may need. It will depend on the size of your garden, lawn and pool but these figures are a good indication for the averages. Also refer to the average rainfall in your area.
Usage Chart
| Use | Watering Time Per Session (minutes) | Number of Sessions per Week | Litres of Water Used |
| Garden | 15 | 2 | 210 |
| Lawn | 15 | 2 | 210 |
| Car | 5 | 1 | 35 |
| Top Pool Up | 60 | 0.2 | 84 |
This usage is based on using 7 litres of water per minute (ie. gravity feed water or a water pump on a moderate setting).
Please also see How much rain does my area get for me to collect