Underground Garden Systems

​With a Freerain, Rain King rainwater harvesting system you can enjoy all the benefits of using rainwater from your roof without the need for alterations to the dwelling's plumbing systems, as with a more complicated full domestic rainwater system.
This makes our Rain King systems popular for both new-builds and retro-fitting to existing properties and projects.

Water, when required is provided by a powerful submersible pump, giving excellent pressure for all external water requirements, such as irrigation and car washing.

Mains water top-up is not included as standard. But can be added if required for at extra cost. But keeping your system without a mains water top up can actually be beneficial, should there be a future hose pipe restrictions.

Our garden rainwater harvesting systems form a good basis either to provide water into a irrigation system or in the most simple situations such as a single hosepipe.

The main installation considerations for a rainwater harvesting system are:

1) Drainage can be brought into a single pipe and to the desired location of the rainwater tank.

2) The location for the tank is suitable from the perspective of access, loadings and drainage.

3) A suitable overflow connection can be achieved.

Garden/outside use rainwater harvesting systems overview of a typical Rain King system