Help with water supply line

[joeu235]

I've searched all over and can't find an answer. My house will be 2000 feet from the rural water supply. Standard house...wife, two kids, no pool. What size pipe do I need to run? Unfortunately, there is no shallow water for a well and any water is 3000 feet down.

 

[oosik]

Wow! That is one really long run. I think your best bet is to contact a local engineer, familiar with rural water systems. You could be talking about having to run a fairly large line to maintain flow & pressure. There are going to be several "areas of concern" that will need to be addressed to provide an adequate supply.

Things such as: do you have a utility easement to install the pipe in, does the rural water supply have sufficient supply & pressure to handle an extension such as this, what sort of maintenance agreement is required to maintain this extension, who will be responsible to maintain the extension. Then you can consider what size pipe, will the rural water system require that the extension & any peripheral equipment be installed by a licensed contractor.

The bottom line - if this is a "doable" project - what is it going to cost.

 

[Handloader109]

I ran a 1"pvc line about a thousand feet and up about 50 ft of elevation in MS. My pressure on the second floor was still decent. My current home in AR has a 1500ft run with no elevation and is 1"black plastic..... Not my choice, but works.

 

[Tractor Seabee]

Bar Napkin engineering indicates a minimum of 1 1/2" pipe unless you need fire fighting capability. In that case consult your provider and the serving fire dept. If it was mine; for the price difference I would use 2" probably over engineering. Volume difference between 1" and 2" is a factor of 4. When digging get all those other utilities in the same xcavation. Seabees always over engineer when they can.

Ron

 

[Qapla]

What is the weather like there, especially in the winter?

We have 1,000 feet of mainline that is run in 1 1/2' PVC. Ours is what is referred to as "thin wall" (class/schedule 200 as opposed to Schedule 40) ... but then, I live where it does not freeze deep in the ground. Thin wall PVC can be purchased from irrigation supply companies and is less expensive than schedule 40, comes in 20' lengths with bells so no connectors are needed for the run and flows more water. Where you come up out of the ground, use schedule 40 (they both use the same connectors).

I would think 1 1/2 inches would work.

 

[Qapla]

it double posted so I deleted the double

 

[KevT]

The first question is how big of a meter is the water dept willing to put in? 1" should be okay, PSI is PSI, you loose that with head pressure, so as long as you are not going up... Just my opinion.

 

[powerscol]

I would recommend 2" minimum depending on the pressure at your tap.

Search of a flow through pipe calculator. There are many on the web. If you are going to water a lawn or garden you will need a flow of at least 5 GPM (gallons per minute) at 30 PSI.
I would recommend design for 10 GPM at 30 PSI if possible. There is also a table that will tell you how many feet to add for bends and fittings too. Be sure to add that in.

Talk to you local pipe supply places as they too have tables. If the pressure is low at the tap you can always add in a booster pump at the house. It that is the case, up sizing the line more can help. Your water supply company can also help. The tap can be smaller, but your trying to reduce line loss, so a bigger line is needed.

PS - I am and engineer too - hope this helps.

 

[Cord]

Wow. Your friction loss will kill any potential pressure. If an engineer looks at this I'd betcha you'll need a 4" pipe or multiple booster pumps. Obviously that's not going to be cost effective. The other solution would be to place a pressure tank with a booster pump at the house to provide some reserve capacity. Even then, you'll run the risk of running out of water during periods of high usage.

 

[Thomas]

All good advice given,if I...I would go next size up for piping thinking of future just in case.