Rainwater Harvesting Header Tank Systems as the name suggests, are an indirect system and require a header tank to be installed in the loft. They have a high reliability, can easily revert to mains supply if rainwater is scarce and the control system is simple and inexpensive.
With most rainwater harvester header tank systems, the pressure may be too low for some washing machines and flush toilets may take a while to fill. However, with the OASIS system, the washing machine and toilets can operate directly from the pump if required.
Please click on the image above for a full sized picture of the system.
