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Non-Cattle Specific Topics
Every Thing Else Board
Running a new water line-need help in sizing it.
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<blockquote data-quote="Angus Cowman" data-source="post: 633107" data-attributes="member: 8829"><p>Bear is correct in his statement but let me simplify it just a little </p><p></p><p>If you have a hydrant that is 100 ft from the main and it is fed by a 1" line you turn the hydrant on you will have say 50psi of pressure </p><p></p><p>ok lets attach a 100ft 3/4" garden hose to that hydrant at the end of that hose you will have about 10% less pressure and flow than at the hyd </p><p>and if you connect 200ft of garden hose to that same hydrant then you will have approx. 15-20% less pressure and flow than at the hydrant </p><p></p><p>but if you connected a 2" line at the hyd and ran it for 200 ft and then attached 5ft of 3/4 hose to the 2" line you will have the same pressure at the end of the 3/4" hose that you had at the hydrant that you originally started at </p><p></p><p>By running the increase line size you are reducing the resistance and increasing the holding capacity of the water sytem</p><p></p><p>then when you reduce the outlet size of the line at point of delivery you are increasing the pressure </p><p></p><p>it is like using a spray nozzle on the end of a garden hose the hose by itself will let water run out 2 ft beyond the end but when you put a spray nozzle on the hose and limit the flow you increase the pressure </p><p></p><p>By running the larger line and then reducing it at the point of delivery you can slow the volume and increase the pressure </p><p></p><p></p><p>You never stated where you are located </p><p></p><p>I know here in Mo i most parts of the state you can drill a well cheaper than you can run a 3 or 4" line for 3000 ft and you would be alot happier with the results</p></blockquote><p></p>
[QUOTE="Angus Cowman, post: 633107, member: 8829"] Bear is correct in his statement but let me simplify it just a little If you have a hydrant that is 100 ft from the main and it is fed by a 1" line you turn the hydrant on you will have say 50psi of pressure ok lets attach a 100ft 3/4" garden hose to that hydrant at the end of that hose you will have about 10% less pressure and flow than at the hyd and if you connect 200ft of garden hose to that same hydrant then you will have approx. 15-20% less pressure and flow than at the hydrant but if you connected a 2" line at the hyd and ran it for 200 ft and then attached 5ft of 3/4 hose to the 2" line you will have the same pressure at the end of the 3/4" hose that you had at the hydrant that you originally started at By running the increase line size you are reducing the resistance and increasing the holding capacity of the water sytem then when you reduce the outlet size of the line at point of delivery you are increasing the pressure it is like using a spray nozzle on the end of a garden hose the hose by itself will let water run out 2 ft beyond the end but when you put a spray nozzle on the hose and limit the flow you increase the pressure By running the larger line and then reducing it at the point of delivery you can slow the volume and increase the pressure You never stated where you are located I know here in Mo i most parts of the state you can drill a well cheaper than you can run a 3 or 4" line for 3000 ft and you would be alot happier with the results [/QUOTE]
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Running a new water line-need help in sizing it.
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