Aprill writes:
These days tanks can be brought in on a trailer. I'm building a house on
an acreage with no town water. A 96000 litre tank has just been installed.
The water container is a bladder and the colorbond ring arrives in
panels. Easy peasy, japanesey.. no cranes.. no rolling massive poly
tanks off the back of a truck.

Neat.

I think it was the ABC that had a piece on innovative poly tanks. As well
as the conventional round ones, there are some that are like air bags.
You just lie them on sand anywhere they'll fit under your house and then
they fill up with water a bit like a cushion. There are some like a corner
piece of Leggo, like two tall thin rectangular blocks joined together at
right angles to form a free-standing block (yes, free standing) that you
can position in a corner of your yard or somewhere that you want to make
a sheltered nook to place a seat, etc. It acts like a wall as well as
functioning as a water reservoir. I expect you could trail climbers over
it.


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None of these is going to droughtproof a town house, but these are a
step in the right direction. Saving water in times of drought is only
half the reason for encouraging rainwater tanks in city areas; saving
street flooding during everyday thunderstorms is the other half. The
thinking is that if every residence could store some of its initial roof
runoff, this will give the asphalt runoff some time to get away before
it is joined by roof runoff, producing less severe street flooding. It
won't help during a prolonged torrential downpour, but then nothing will.
--
John Savage (news address invalid; keep news replies in newsgroup)