Apparatus and a method are aimed at reducing flood risk from stormwater
draining from a property (1). The apparatus is adapted in use to retain
stormwater at the property (1) releasing it from the property and
comprises a container (6) which in use is located underneath or proximal
to a building (2) of the property (1), and a control chamber (3) with
which the container (6) is in fluid communication. The apparatus is
operatively connected in use by at least one conduit (4) to drainage means
(5) sourced externally from the building to receive stormwater into the
container (6) by way of the control chamber (3), and is further
operatively connected in use to at least a second conduit (7) to which
stormwater exits from the container (6) by way of the control chamber (3).
A level of stormwater in the control chamber (3) determines the inflow and
outflow of stormwater into and from the container (6). Debris is prevented
at the control chamber from entering into the container and passing to the
second conduit (7). Stormwater may be pumped from the container for
watering a garden or other uses. The property (1) may comprise a series of
buildings (2), each with its own stormwater retention.
