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IntroductionCork Glass have 8 machines that use either
fresh or recycled water as a coolant as part of the production process.
This created a demand that outweighed the public supply.
Harvested rainwater can be used for all non drinking water uses.
Water IntakeThe downpipes are connected to a bank of
storage tanks. Each tank has an 1100 litre capacity.Capacity can be varied by the number and
size of tanks.These tanks are supported by steel girders on
block on flat columns.
PressureBy positioning tanks
up off the ground, a pressure can be maintained.
This is sufficient to flush toilets, feed showers, sinks, irrigation units.
We use a small pump to increase pressure to 3 bar.
Cost benefit analysisWater charges are based on “water-in water-
out” at a cost of approximately €2 per Cubic Meter of water.
Water is metered as it comes into a building and therefore charges also apply to dispose of it. Harvested rainwater by-passes this system as there is no charge for disposing of it.
Set-up costs
All labour and installation was performed by our staff so costs were kept to a minimum.
Tanks €2500Plumbing materials etc €1000Total cost €3500
Due to the simplicity of the system, there are little, if any maintenance costs.