Additional rainwater harvesting
The additional capacity is provided by two 800 litres water buts from Ecosure. The two water buts will be linked together to form a 1600 litres or 422 gal. storage. The rainwater does not need to be processed by the reed bed to make it useable, unlike the greywater. This arrangement will therefore reduce the electricity requirement to pump water from the reed bed to storage. Apart that is for any overflow water. The overflow from the new water butts will outfall onto David's old slide, repurposed into a water course, which will then flow into the reed bed.