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What size water line to run ? 2200 feet.

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IC

05-06-2001 18:16:12




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Does any body have any ideas of what size water line that I will have to run 2200 feet ? I think the main water line is a 4 inch line. I want to make sure to have enough pressure. The water is for a 2 bath home.

Thanks in advance for any advice.




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david

05-11-2001 07:10:26




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 Re: What size water line to run ? 2200 feet. in reply to IC, 05-06-2001 18:16:12  
If you are like me you simply need to know what works not what you are going to lose. I'm running 1000' of 1" to a trailer with plenty of water, we then T and run another 1500' to a 1000g stock tank still plenty of pressure. Then we Y and run another 1000' to a hydrant, tank, and another trailer still plenty of water. Some people say that 3500' of 1" you would just get a trickle but its plenty of water. Off that hydrant mentioned above I run another 5000' of 1" above ground at the end of this I can keep a 150 g tank full for 100 head of stock. Bigger is better but, until we put in all teh extra pipe the trailer at 900' had faucet probs. because we had too much pressure.

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Big Jake

05-10-2001 07:29:24




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 Re: What size water line to run ? 2200 feet. in reply to IC, 05-06-2001 18:16:12  
Have you looked this up in the ?quot;uniform plumbing code?quot; book? I believe they have tables to spec this out. Your library or plumbing inspector ought to have a copy of this.



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IC

05-07-2001 21:24:50




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 Re: What size water line to run ? 2200 feet. in reply to IC, 05-06-2001 18:16:12  
Thanks for all the good information, you all are giving me some good advice and this is just what I was looking for. I am currently on a well about 150 feet from my house and and I now have a 1" PVC from the well to the house and the pressure is good, the water here is OK if I use a water softner/filter R/O system. My home has 2 full baths. I live in the country in the Northern part of Alabama and they are running water down the county road, it's up to me to run it to the house. The local water Dept. would not tell me what I need (no help there).They did tell me the coust of the water meters was $350 for 3/4", $440 for 1", and $1300 for 2". The frost line here is about 15", It is down hill the first 1500 feet and the last 500 feet is up hill, the house is a lower plane than the actual supply line at the road. It is a straight run , if I tie in at the well house I will have 1 90 deg turn about 150 feet from the house. I do not know of any codes in the county here, I do not think we have them at least that I am aware of. Thanks again for any additional information.

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ErnieD

05-08-2001 16:29:23




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 Re: Re: What size water line to run ? 2200 feet. in reply to IC, 05-07-2001 21:24:50  
0.431 x the feet in elevaton will give you the gain in psi for the drop in elevation.
===== ===== ===== ===== ===== ===== ===== ===== 1.85 4.52 x gpm pressure drop = ----- ----- 1.85 4.87 1 x d

Where d is pipe diameter in inches.

The above formula will allow you calculate flows and pressure drops for different pipes. If you post back your assumptions I will be glad to take a stab at the math. The above is meant for fire mains, but should work for small stuff. The numeral one is a correction factor to account for pipe roughness, I chose one since you were using plastic pipe. Scaled pipe would be 0.85.

If you could afford it, two inch, with a hydrant riser and a appropriate quantity of "yard" hose would be a nice safe guard in case of fire. Might even give you a discount on your insurance.

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ErnieD

05-08-2001 16:37:17




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 Re: Re: Re: What size water line to run ? 2200 feet. in reply to ErnieD, 05-08-2001 16:29:23  
Well my attempt at spacing the equation failed miserably. Here it is in words.

Pressure drop in psi is equal to 4.52 times gpm to the 1.85 power. That all divided by 1 to the 1.85 power times diameter in inches to the 4.87 power.



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walt(more info)

05-07-2001 18:14:19




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 Re: What size water line to run ? 2200 feet. in reply to IC, 05-06-2001 18:16:12  
Mine is about 1000'. Called the water company and ask about the pressure, all mine is downhill. I went with 1" pvc, buried below the frost line. Recommended by the water company. Oh, 3 1/2 baths. I actually had to add a pressure reducer at the house.(recommended by the plumber)



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walt(more info)

05-07-2001 18:12:49




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 Re: What size water line to run ? 2200 feet. in reply to IC, 05-06-2001 18:16:12  
Mine is about 1000'. Called the water company and ask about the pressure, all mine is downhill. I went with 1" pvc, buried below the frost line. Recommended by the water company.



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CHRIS-MF35

05-07-2001 18:06:03




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 Re: What size water line to run ? 2200 feet. in reply to IC, 05-06-2001 18:16:12  
i haven't a clue what size.(me and my plumber have this deal, i don't mess in his profession and he doen't mess in mine). i would consider running a spare line and capping off for a spare, or you could run both in parrall. thats a long way to have dug again if there's a problem.



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E. Borchardt

05-07-2001 03:06:18




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 Re: What size water line to run ? 2200 feet. in reply to IC, 05-06-2001 18:16:12  
IC,
This a tuff question, and for 2200ft (expensive) you need to get it right the first time.Some of the questions that need nailed down are:
1.)2200 feet of run but how much is up hill, down hill,how many 90 degree turns, how many 45's?
2.) What's the initial pressure?
3.) What's the weather like were your at? In other words we don't want this line to heave up or freeze.
4.)What do you want to wind up with, 4GPM, 5Gpm, 10 GPM, or?
5.)What's county (city) code?
If your coming off your well whats the pump curves?
There are many other questions as well. You need to talk with some one in the business. I like plumbers, in fact if they had not invented beer they would rule the world. BUT do you have any idea what 2200 feet of 11/2" K copper would cost? I would talk with someone in a local water company, preferably an engineer. Even if it cost you a couple of hunderd bucks it would be well worth it. Having inadequate water supply because the service line is under size( and therefore needs replaced) would be the pits.By the way if you bury white PVC ( do not expose it to sun light)pipe it generaly works well in this type of application.
I know this sounds rather involved for a water line, but as any mechanical engineer can tell you this can get complicated. Its not like electricity were you have all known values. I like electricians too. But as can be gleaned from a few posts back they tend to get tangled up in their own jock strap on occasion.

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walt

05-06-2001 20:30:27




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 Re: What size water line to run ? 2200 feet. in reply to IC, 05-06-2001 18:16:12  
And from someone who "has been there, done that".
Put in several shutoffs along the run. It helps to be able to narrow down leaks if the pipe develops one.



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rich

05-06-2001 19:50:04




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 Re: What size water line to run ? 2200 feet. in reply to IC, 05-06-2001 18:16:12  
as a plumber i would run a 1 1/2" or 1 1/4" line what kind of pressure is in the main? is it 2 full baths? or 1 1/2? are you comming from a well or a town service? if in doubt a 1 1/2" line is more than enough, i would use k tubing if flexible if poly use the blue pipe, and do NOT use used Poly, if plastic be certain you use sch. 80. Try a plumber or the building dept in your area if you have any other doubts. That is quite a long run you may just get a price on a new well.. a lot depends about the area and local codes.
Rich

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