Carl Denk wrote:

> In the last week I have seen on the TV (This old house on PBS), where 
> there is a movement to save the roof water and use it as a conservation 
> item. 30 years ago I was just a little ahead of time. :)

It's being rediscovered now. At least in Germany, it was much more common
(on a smaller scale, less elaborate than your setup) some 50 years ago.
Pretty much everybody who had plants had a barrel next to each pipe that
comes from the roof, catching the rain water for irrigation.

Gerhard

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