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| Stormwater Systems »
Rainwater Harvesting |
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| 2. Rainwater Harvesting
/Infiltration System - Nelson Bay, NSW |
Recent legislation in New South Wales
has led to the requirement under BASIX for rainwater tanks
to be installed on new houses built in the state. This
project in Nelson Bay required individual tanks to be
constructed with each house.
Given the site restrictions on each lot, it was necessary
to create systems that were long and narrow and could
fit into the tight spaces. Above ground tanks was not
an option due to the lack of space and for aesthetic reasons.
Each system comprises an EnviroSump Filtration Unit that
pre-filters water before passing into a 2000 litre Rainwater
Harvesting tank. The tank is surrounded in a pre-welded
liner that acts as a bladder to store water.
A pipe from beneath the tank feeds into a pump well that
contains a submersible pump. The water is then used for
toilet flushing. Excess water from the rainwater tank
overflows into an infiltration tank.
The size of the infiltration tank varies depending on
the roof area of the house. A 150mm pipe with end cap
has been installed as an inspection point at the end of
each system. |
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| Each system consists
of an EnviroSump, 2000 litre Rainwater Tank & Infiltration
Tank. |
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150mm inspection point
at the end of each system. |
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