Rainwater harvesting does not have to stop at watering the flowers and flushing the toilet. If filtered properly rainwater can be stored in a potable water tank and then drunk. These potable water tanks don't just have to be used for rainwater harvesting, they are suitable for most situations where drinkable water is needs.
If you haven't got the space for an above ground potable water tank, we have a selection of underground potable water tanks that might better suite your needs.
Read More on Potable Water Tanks
Gallons to Litres
Litres to Gallons