Water pipe to distant field

arctictree

Thinking of piping water to a field 500M (circa 7M higher) from the current water supply. Do ye know if the standard ESB driven submersible pump with pressure tank would be able to do this?

pedigree 6

It's after coming up from either 40ft to 140ft or more below ground to the pressure tank from the pump.
I can't see another 21ft in height putting much pressure on it.

larthehar

It's all about pipe diameter.. i used an online calculator to figure out pressure drops and that.. 3/4in pipe has twice the volume of 1/2in and so on..
Depends on how many troughs to feed..
Flow rates required..

mikefoxo

Get yourself a ram pump, or better yet build one for 50 quid.

https://www.youtube.com/watch?v=y51dhEDq77A

https://www.youtube.com/watch?v=lV4_ovFq0MQ

gerryirl

dont do like a few I know and run a half inch pipe that far. you end up with no water at the end of it. Friction loss.. Put a plenty big pipe in as larthehar said

memorystick

Anyone any idea the cost of 400m of 3/4 inch piping. There's only a 1/2 inch pipe coming out of the submersible and I want to put in paddocks and troughs. Hoping to graze 80+ cattle. Thanks in advance.

patsy_mccabe

It goes like this - A pump will output 2 things, flowrate and pressure.
The power of a pump (KW) is the product of flowrate x pressure.
To calculate the pressure required, you have to consider the height the pump will pump to. For this 1 Bar will be required for ever10 metres in height. If the pump is down a well, then you must allow for this height too. The other pressure loss is due to friction in the pipe. The longer the pipe and the smaller the diameter the greater the friction loss.
From;
http://www.pressure-drop.com/Online-Calculator/

For example, a one inch pipe and flow of 50 LPM over 100m of length would loose 1.33 Bar.

Username John

arctictree wrote: »

Thinking of piping water to a field 500M (circa 7M higher) from the current water supply. Do ye know if the standard ESB driven submersible pump with pressure tank would be able to do this?

Is this the only option open to you?

I would have thought where you are, there would be a few streams around, and maybe a gravity flow from such a stream might be an option?

arctictree

Username John wrote: »

Is this the only option open to you?

I would have thought where you are, there would be a few streams around, and maybe a gravity flow from such a stream might be an option?

Most of my fields slope down to a stream running through the middle of the farm.

Another option would be to pipe it on a different route to the lowest part of this field, which is exactly the same level as the pump.

my3cents

You can have more than one pump.

If you fill an above ground storage tank or pond with the well pump then you start the calculations again when attach a second pump.

_Brian

memorystick wrote: »

Anyone any idea the cost of 400m of 3/4 inch piping. There's only a 1/2 inch pipe coming out of the submersible and I want to put in paddocks and troughs. Hoping to graze 80+ cattle. Thanks in advance.

The 1/2 inch outlet is one limiting factor, but you should pipe with a larger bore out to the field, I'd be looking to the largest bore yo can afford..

I'd wonder about the strength of that pump if the outlet is only 1/2 inch, basic submersible pumps I've seen are 3/4 outlet and often 1inch for higher output pumps, its possible that friction in the pipe over that length will be too much for the pump to pump past. Something like a 1inch pipe will lower the pressure and build in redundancy for the future when you may install a higher hp pump.

Other options to consider would be a ram pump as mentioned earlier, it requires a bit of flow and stability in the stream but its an option..

How about digging down and burying a few well liners near the stream, they should fill easily and then maybe a solar pump to feed the trough ??

Waffletraktor

Put a black ibc at the top as a reservoir and feed back out?