terryc wrote:
> On Sat, 06 Sep 2008 19:52:50 +1000, Sylvia Else wrote:
>
>> terryc wrote:
>>> On Sat, 06 Sep 2008 08:21:46 +0000, Mango wrote:
>>>
>>>> The current government has made many poor
>>>> decisions with the emphasis on the short term rather than the long
>>>> term. The desal plant isn't one of these. They deserve congratulations
>>>> for getting something right.
>>> Desal should be the last resort. Firstly, it is supply the area that is
>>> getting the most rainfall in the Sydney metro anyway. apart from beingin
>>> thebay withthe creepng toxic waste infusion, so how about they start
>>> collecting all that rainwater. It would certainly use less electricty to
>>> clean it up than desal.
>>>
>>>
>> But cost more. It's easy to see the stuff falling out of the sky and think
>> "free water", but the infrastructure to capture it and store it is
>> expensive.
> Offset by the cost of the infrastructure to cater for the surge during
> rain storms.
>
>> The cheapest way is to have a catchment area and a convenient
>> place to build a dam reasonably close to where the water is required.
>
> And these are being built. They are called stormwater detention basins.
> Been around for decades.
Yes. Care to post some figures about their capacity?
Once full they have to be emptied reasonably quickly, or they're not
available for the next storm surge.
Sylvia. |