"mm" wrote in message
...
On Wed, 13 Dec 2006 13:50:27 -0600, "Jimi"
wrote:



All you need, or ever would want to know about aerators found he

http://www.sydneywater.com.au/Saving...apAerators.cfm

I don't know. The first paragraph is this:

Aerators

Aerators restrict the flow of water from your tap without reducing water
pressure. Fit an aerator to your taps and reduce the amount of water
you use by more than 50%.

How could this be true. How can it restrict the flow without reducing
pressure? How can it reduce the amount of water coming out without
reducting pressure.

By making the opening "smaller", you get less water at the same pressure.

Put your thumb over the end of a garden hose so most of the stream is
blocked. The water pressure coming out is a lot higher, but there is
actually less water coming out.