Because friction in the pipe will reduce pressure by a bunch and
watering relies on flow, which needs pressure. Again we a discussing
this without the needed information. Rise? Drop? initial pressure?
A "bunch"... is that universally recognized scientific nomenclature?
Internal turbulence does not occur to any appreciable degree in
typical hard pipe, especially not with smooth plastic irrigation
tubing. Fire hose is coarsely woven cloth so is rough and does cause
turbulence but still reduction in volume is negligible considering the
very high pressure pumps used for fire fighting... were it presenting
a water volume problem you could bet your bippee that fire fighters
would use something else. I can't imagine anyone using fire hose to
water their garden. However gals like fire fighters watering their
gardens because of their big rough hoses with all their volume and
high pressure... and especially how they fold up so neatly for storage
in their drawers. LOL-LOL
I've done that occasionally... just as much volume exits 100' 200',
300' 400' as 500' or more, so long as the hose is not kinked/flattened
or otherwise constricted or run up hill whatever volume enters
exits... I'm positive you've never actually done what you suggest,
except tinkling with your tiny 2" fuse. What people don't realize is
that their hose bib valve is what dictates volume.. if your hose bib
is supplied by 1/2" copper using 5/8" hose won't supply any more
volume than a 1/2" hose, except for the first couple seconds untill
the little more volume in the larger hose is expelled, kinda like the
first burst or pressure from a pressurized hose laying out in the hot
sun... a very brief surge. And most folks do have 1/2" domestic water
plumbing in their homes to each outlet... then the only benefits of
using 5/8' garden hose is that its larger diameter and wall thickness
is much less prone to kinking/collapsing and has a longer life than
1/2" hose. It's silly to buy 3/4" garden hose for the typical
residence, it offers no benefit, it won't produce more volume and will
be heavy/clumsy, and will quickly fill your hose reel, not to mention
being more costly for nothing... 3/4" hose probably can't be coiled
into a small enough diameter to fit the typical home owner's hose reel
anyway... 3/4' hose is meant for commercial applications. One can
increase pressure at the discharge by limiting exit diameter, by
adjusting a nozzle, but that reduces volume... volume can't be
increased past what is supplied from the source. There is only so
much volume available from the typical residential water supply,
that's why sprinker systems are installed with several zones...
without separate zones if all the heads were run at once they'd
dribble n' drip like your widdle impotent peepee. It's plain
silliness installing a grid of piping over a six acre property and
then supply it from a residential well, one would still need to walk
about opening one valve at a time and stand there like a putz watering
for however long before moving on to the next area. MUCH easier
hauling water to the various plants... leave a bucket with a hole in
it by each plant, and just refill from your hauled buckets as needed,
less than 30 seconds per plant. Many large commercial nurserys use
this system, wastes far, FAR less water... many sink a few 3' lenghts
of 4" perforated poly pipe into the ground around each newly planted
sapling, then periodically pass by hauling a water tank with watering
wand in hand, don't even need to get down from the tractor to fill the
I hook up 50 ft of 5/8" garden hose to the sill cock at my house and
measure the water that flows out over 1 minute. I do the same thing
with 500 ft of the same hose. According to what you're claiming when
I measure it over 1 minute, the same amount of water will flow. You
have much experience here on planet Earth?
On Sat, 2 Jul 2011 00:09:53 -0700 (PDT), " firstname.lastname@example.org"
You've never done that, you don't have anymore 5/8" hose than your one
50' length or you could actually try it... I have many 100' lengths of
5/8" hose and have actually done what you suggest... whatever volume
goes in one end comes out the other end... or do you mean when your
mommy pinches your widdle peepee while changing your nappy.
Of course whatever volume goes in one end comes out the other.
That has nothing to do with what you claimed, which is that the
volume of water flowing through a pipe depends ONLY ON THE
DIAMETER. The volume of water flowing through a pipe depends
on the diameter, length, and pressure. The narrower the pipe the
more resistance to flow if has. The longer the pipe the more
resistance to flow it has. That's how the laws of
physics apply here on planet Earth. So if you connect 50 ft
of garden hose to your home which has a water pressure of
50lbs you're going to get MORE water coming out the other
end than if you connect 250 ft of hose. And if you connect a
long enough length of hose you will get zero flow because
50 lbs isn't enough pressure to overcome the total resistance.
And for someone so obviously ignorant, I would not be
taking cheap shots at others here.
I wonder if you could find some used hand move sprinkler line.
The stuff I'm thinking of is 4" aluminum and has a coupler for a
sprinkler at each joint. It usually came in 30' or 40' sections.
You could just pull it apart to drain it or put a valve at a joint
now and then.
One drawback might be its temptation to thieves.
I've never heard of anyone collecting it. Old tractors and
farm equipment , old cars and barb wire, yes. A former co worker told
me people collect the insulators used on the old overhead phone lines.
The scrap value of used aluminum pipe might be pretty high. Many
farmers in my area went to pivot irrigation so scrapped their irrigation
pipe. No one much cared for hand move sprinkler line. It was just too
labor intensive. My Dad had some. He also had "volunteers" to help
Nah, neither have I, but farmers tend to get attached to stuff that's been
sitting in their PUS pile for years and the value increases in leaps and
bounds when someone else might want it.
Old tractors and
:-)) I have a few of those. I also have a few old rabbit traps that I've
foudn round the paddocks over time.
Used all the time in farm irrigation. Also in the recycling business
- very popular with the midnight recyclers.
So what do they do with it? I presume they have a market, but is it for the
pipes or for the aluminium.
I don't know what country you're in but I use polypipe to take water all
over the place and since a lot of it has now been in place for up to 20
years, I don't consider it to be temporary.
I use 2 inch, 1 inch and three quarter inch. Very little of this is laid
underground except for perhaps 20 ft of the 2 inch stuff that forms a main
artery. Some of the 1 inch and three quarters of an inch stuff has become
covered over the eyars as drebris drops on top of it. I have a main 2 inch
line coming from our big tank (cistern in USian) and then I run one inch and
3/4 inch withint the veg garden and in the orchard and down to the chook pen
and also from another 2 inch pipe down at the pond at the bottom of the
Lay it out on a hot summers day when the sun helps it to lie out better and
carry some hot water to do all the connections and it's an easy job. One
hint would be that if you manage to find little sprinkler heads that you
like, buy a truck load. I am reduced to 2 heads of my favourites.
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