Water used in your home is classed into two broad categories – grey and black water. Black water must be sent into the sewerage system, but grey water can potentially be reused in your home.

Black water includes:

•   Everything flushed through a toilet
•  Water from your dishwasher (it contains a lot of grease, harsh detergents and other solids) 

Grey water includes:

• Water from the laundry, especially the rinse cycles 
• Bath and shower water 

 If anyone in your house has gastro or another tummy bug, the flu or measles, it is best to not use even grey water to ensure the disease is not spread.