ELEMENT:
'Rain Dance' Water Filter
AIM:
The aim of the water management strategy at the Healthy Home is to decrease
the demand for water from the mains water supply. This was accomplished
through water efficient fittings and the installation of two rainwater
tanks. The water in the rainwater tanks is treated so that it can be use
for all applications within the house.
STRATEGY:
Protect Water Quality
To ensure the water in the rainwater tank is kept free of contaminants
a number of devices have been installed at the Healthy Home including
a wool filter. The filter consists on an internal wool filter and a hard
plastic outer case. The wool stops any particle bigger than 20 microns
in size (one micron, is one thousandth of a millimetre) from entering
the UV disinfection unit.
The filter removes sand and sediment from the rainwater collected on
the roof of the house. Sand and sediment in the water can make it unfit
for drinking and prevent the UV disinfection system from effectively killing
water borne pathogens. Sediment in the UV system acts a refuge for the
pathogens, allowing them to survive the disinfection process.
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