No, it can not. Restrictions are removed, but pressure is not increased,
just decreased less.
Think about that for a minute and once you know the difference, you can cure
the problems easier. Along the same lines, can you make something colder?
No. You can, however, remove heat. The physical differences is of the
utmost importance when dealing with changing pressures or temperatures.
Unless you know what characteristics are the ones affecting your situation,
it is a crap shoot to find a cure.
Bigger pipes do not make more pressure. This is not my opinion, this is the
laws of physics. I didn't write them, but we all must abide by them.
Oh my! You came here knowing nothing and now you disparage comments by
others. Just what is misrepresented?
No one has yet explained or proven that a larger pipe will INCREASE
pressure. The only way to increase pressure is to have a higher head or
mechanically, as with a pump. There are ways of reducing pressure drop, but
that is a different method all together.
Did you understand my analogy of making cold?
You better go back to the books then. The pressure at the output
end (the end that we are concerned with) of a flowing circuit can be
increased by a larger diameter pipe.
Whether hydraulic or electrical the conduit can restrict flow by
creating pressure drops in a active circuit. The OP will not see this
benefit in pressure but that does not mean it doesn't exist.
Simply you can't say that. Law of Physics deals with several parameters.
For one, if incoming rate of water flow is constant, bigger pipe lowers
pressure. It all depends on the situation, rate of flow, intial pressure
at the inlet, rate of flow at the outlet, even ambient temperature, etc.
all matters. I think you better go back to book as well. Remember Boyle
& Charles law?
No meanings are twisted. Facts are facts. Probably best that you kill file
me as I'm not going away. But, if you want to join my fan club, for a $10
cash payment you get an autographed 5 x 7 color photo of me with my plumbing
equipment and pressure gauge.
Can't come up with a disparaging comment of your own so you have to copy
Welcome to my fan club. As soon as I receive the $10 payment, the
autographed color photo and membership card will be on their way.
It's fun to sit back and watch the new found so called experts argue
with people who are the real experts on the subject.
Ed, your not missing anything and your not crazy, some people are just
a little thick and it takes longer. Good luck.
No it's not fun to sit back and watch a so called professional make a
donkey's ass of himself; transparently pretending to set "non-experts"
straight by resorting to arguing against things of an obvious ignorant
nature that simply no one suggested whatsoever in the first place.
My apologies to Larry Wasserman (and everyone else)... I'll let it go now.
BTW, thanks again to all who were courteous enough to accomodate my
persistence in my quest for a more complete understanding of facts presented
here and elsewhere. I learned what I came here for and then some.
of physics. I didn't
write them, but we all must abide by them.
You're right if you're looking at the "pressure" ( force x mass )
of a physically larger output. Like trying to put your hand over a 1/2"
pipe @ 50 psig, vs. a 2" pipe @ 50 psig, to stop the flow.
However, psig (pounds per square inch gauge) is psig.
If you put a gauge on a 1" pipe , run 10 ft., then bell up to say 24",
add another gauge,
each gauge will read the same static pressure. At flow, it will behave as
it should with standard friction losses or Cv applied. No magical increase
All pipes have loss, otherwise we'd have a superconductor pipe which
doesn't exist. Magical increases in pressure were never discussed. A
possible increase of pressure at the output end assuming a lossy pipe
can be achieved.
On Fri, 20 Oct 2006 20:27:42 -0400, firstname.lastname@example.org wrote:
Agree. Static pressure will not increase; however, dynamic pressure
will increase. My $0.02 :)
That said, my oldish house was built with 1/2" copper pipes. I
recently changed all the trunk lines to 3/4". The shower I use now is
fed by a 3/4" trunk line, then to a 72" long 1/2" pipe to the shower
I notice no meaningful pressure increase during a shower (but it has
to be there after all that work!)
The downside was that it takes longer for hot water to reach the
shower because of the increased volume in the pipe.
I haven't really noticed for lack of samples; but, should someone
flush a toilet during a shower, there should be less of a pressure
drop at the shower head - probably the only justification for doing
the 3/4" upgrade.
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