Borehole depth.
- Thread starter einstein
- Start date
Roger Perry
Member
Irrigation wells with submersible I know of right around 500ft
We put in a bore hole this year and it went down to 330ft to get the water. The chap doing it said he would have been able to bore down 400ft max.
Farfrae
Member
- Location
- Pontargothi, Carmarthenshire
No idea and this is American but it may help
Ours is down 70m+
Properly constructed, it shouldn’t be an issue to raise the pump - slowly - using a telehandler from that depth or greater
- Location
- Northumberland
Ours hole is 70m deep with the pump at 30m
Blimey. Some really deep boreholes out there. Ours is about 25 meters but the pump is at the top,outside the borehole with two pipes going up and down creating a loop of water. How easy is it to get the pump out of a deep borehole. Obviously the cable and pipe have to come up with it.?
is the pump height fixed or would you move it up and down depending on the water table?
- Location
- Northumberland
1st 30m was drilled at 6" with a solid liner Then 40m at 4" with a perforated liner
So 30m is as far as it goes down.
Pistonbroke
Member
My neighbour's one is about 400ft and the pump went. The engineer had a tripod over the hole and hooked the pipe or rope on to a Hilux to pull it up and it spun all four wheels. Used a tractor in the end. There's a lot of weight of water in 400 ft of pipe!. Ours is 120 ft and we pulled it up by hand once
We had been in our place a few years when out of curiously I decided to haul up our borehole pump by hand, turned out that was also about 70 metre deep. It was a case of ‘I’ve started so I’ll finish’ but I was VERY relieved when the pump finally appeared!
Alchad
A hand job is always better. You can feel any tautness
I have pulled mine out by hand once, never again. Like you once started you are committed and just have to go through the pain. The one at 90 metres comes out easy enough pulling with the quad bike through a pulley hanging from the foreloader. I think it's a good idea to have somebody with their hand on the rope so they can detect if the pump gets stuck.
- Location
- Cambs/Suffolk/Norfolk
Always be very careful of where your feet are with relation to the cable ect when removing and installing. If something goes wrong and it plummets to the bottom it’s taking the cable down very fast and you don’t want to be caught with your foot in a loop.
Exfarmer
Member
- Location
- Bury St Edmunds
There is no technical limit to the depth. You can onlu suck a maximum of 32feet ( roughly ten metres ) you can pump as high as you like . Provided you have
A the strength of pipe
B the power of pump
C the energy available
A the strength of pipe
B the power of pump
C the energy available
Pistonbroke
Member
House next door bored down 380 ft before hitting water and it comes to the surface by itself so the pump is at the top
Exfarmer
Member
- Location
- Bury St Edmunds
They were very lucky, artesian wells are not common in the UK
They are round here !!! My borehole for my ground source is artesian
- Tags
- hilux irrigation quad telehandler