On Thu, 24 May 2007 10:20:38 GMT, "Edwin Pawlowski"
wrote:


wrote in message

Larger pipe will give MORE pressure.


How does it do that? Is there a pressure booster inside of it?


OK. bad wording on my part....
Larger pipe wont increase the pressure beyond what is available from
the source, but it will allow the maximum pressure from that source.
If you ran a whole house from 1/4" copper tubing the pressure loss
would be very noticable. The pressure when the sink is first turned
on would be full pressure, but that would drop in a second or two, and
if another sink was turned on at the same time, it would really be
noticable. I know this for fact from using garden hoses. I got a
couple of these cheap 1/2" hoses. If I hook up 2 hoses (100ft), I
barely have enough pressure to wash the car. But I also have a few
3/4" hoses and have good pressure. Wanting the max pressure and
volume of water from my hose, I not only bought these 3/4" hoses, but
I replaced the 1/2" pipe that was feeding my outside spigot with 3/4".
I now have satisfactory pressure at the end of the hoses.

Pressure wont increase beyond the source pressure, but smaller pipes
and hoses restrict the pressure allowable.