- Inflow – a hole in the top of your rainwater tank where the water flows in from piping attached to your roof
- Overflow – a hole at the top your rainwater tank on its wall where rainwater can flow out once your tank has reached its storage capacity
- Outlet/s – a hole where a tap can be fitted, or piping leading to a pressure pump which pumps water throughout your property to where it is needed.
In order to collect rainwater and use it as part of your property’s water system, your rainwater tank needs to have several holes. These generally consist of: