To work out how much rainwater you can harvest from your roof (catchment area) use the simple calculator below:
THE DRY SYSTEM
This system involves the downpipes from the house gutters feeding directly into the tank. This is called a dry system as the feed pipes run dry after the rain has stopped.

THE WET SYSTEM
This system allows for the tank to be positioned further away from the water collection source and uses the principal that water will always find a level. The pipes remain ‘charged’ so when it rains the water will spill over into the tank.

TRANSFER SYSTEM
This system allows the tank to be positioned anywhere on the property with an automatic transfer pump from the underground pit to the tank.


