My New Borehole Doesn't Produce Enough Water - Science/Technology

My New Borehole Doesn't Produce Enough Water - Science/Technology - Nairaland

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My New Borehole Doesn't Produce Enough Water by Think9ja(op): 12:22pm On Nov 04

Good day guys,

In April this year, I contacted a driller to drill a borehole for me. Before embarking on this project, a survey was carried out and the survey says there's water. The survey recommended that we drill a maximum of 110m. The same people that did the survey are the same people that drilled the borehole.

After they finished, we didn't immediately install the pumping machine until after a week. I have to also say that a day after they finished drilling, it rained a bit, but the casing was properly covered. I could see water near the top of the casing, like five meters away. I don't know if it was because it rained the previous night or it was water from the borehole.

After installing the pumping machine, we noticed that during pumping, the force drops drastically after about 30mins. We didn't make a big deal out of it at the time because we thought the well was still developing.

Now it's been nearly seven months and nothing has changed. I did a little experiment; I switched on the generator and timed how fast it will take to fill a 20L keg and I repeated it after 30mins. For the first time, it took 17 seconds and for the second time, it took 65 seconds. I had to turn off the generator because the water was no longer gushing out well.

Also, during pumping with light, the force is poor but the water is very clean. But during pumping with generator, the force is strong for the first 20-30 minutes, but then the water is not clean. It looks browny and sandy.

I have never been able to get upto 2000L anytime I pump.

Even after turning off the generator and leaving it to recover, it's still the same problem

I also have to say that there are two boreholes and two wells within 30-40 meters from where mine is. Whenever they pump, I can see their tanks getting filled up, even though the tank is not the same size as mine. The wells too have adequate water, even though it dries up when the crowd is much. I don't know if these are all factors that can affect my yield. I just want to be able to get 5k liters a day.

For more info, I attached the survey report for proper diagnosis. Please, help me

3 Likes

Re: My New Borehole Doesn't Produce Enough Water by ghettochild(m): 3:05pm On Nov 04

U are asking us the question u are supposed to ask the people who drilled the borehole..
They need to come redrill...the hole is partly blocked

21 Likes

Re: My New Borehole Doesn't Produce Enough Water by Ujaino(m): 4:32pm On Nov 04

AFOSINO DRILTECH.
Firstly, at what depth was the borehole dug?
Why I asked the question is that they might have not gotten to the major fracture before they terminated their drilling.

We are into borehole drilling, geophysical survey and general water project management.

5 Likes 1 Share

Re: My New Borehole Doesn't Produce Enough Water by Flangelo12: 8:40pm On Nov 04*

Were you on site. when the borehole was drilled?

Did you observe its development and was a pump test conducted?

Did you observe the runoff?

How many casings did you utilise?

Were they PVC or steel?

Did you observe the gravel packing?

Grouting?

How many screens were used and at what depth?

11 Likes

Re: My New Borehole Doesn't Produce Enough Water by ajalawole(m): 8:41pm On Nov 04

Anything below 140 or 160 is a mess. To get good and drinkable water you need to drill below 135 towards 160.

7 Likes

Re: My New Borehole Doesn't Produce Enough Water by LordLicifer(m): 8:45pm On Nov 04

We no know! Stop disturbing us.

3 Likes

Re: My New Borehole Doesn't Produce Enough Water by Flangelo12: 8:45pm On Nov 04

The geophysics result is suspect.

Unlikely you use a spread of 150 metres in your survey and you penetrate 150 metres depth.

Secondly, it's important for us to know the location.

It says its basement complex.

Quite unlikely you'll get to 150m in basement.

5 Likes

Re: My New Borehole Doesn't Produce Enough Water by Isholad11(m): 8:48pm On Nov 04

Get a continuous on and off timer. A floater switch, which will off it completely when the tank is full. Simple

7 Likes 1 Share

Re: My New Borehole Doesn't Produce Enough Water by SeniorGee(m): 8:54pm On Nov 04

That report is suspect.
They can try flushing / back-flushing maybe the screens are clogged.

And why go 110 when the acuifer stops at 85m?

Shoddy job to me!

4 Likes

Re: My New Borehole Doesn't Produce Enough Water by baconline(m): 8:54pm On Nov 04

From what u said, u really cant get the 5000 litres but u can manage the hole and get the most out of it. If this test u carried out is recently the yield will still reduce in the peak of the dry season. Use a liquid level control to cut the power when the level of water is low and start pumping when the level is high thats the best u can get from the hole. It is what it is

Re: My New Borehole Doesn't Produce Enough Water by YeyeGbami: 8:54pm On Nov 04

Maybe water no dey that side, chaii na to look for another angle to try risk am again.

Any option you go for, be ready to spend more

Re: My New Borehole Doesn't Produce Enough Water by concho(m): 8:57pm On Nov 04

Na borehole wey Aboki wey no sabi go and come drill for me na im you Dey draw map for ?😂😂😂

You must be an Agbado supporter o, everything always make sense on paper for Una

2 Likes

Re: My New Borehole Doesn't Produce Enough Water by telim: 8:59pm On Nov 04

Borehole survey is a waste of time and money. Getting water from a bore hole depends on the area.

1 Like

Re: My New Borehole Doesn't Produce Enough Water by Hemanwel(m): 9:01pm On Nov 04

ajalawole:
Anything below 140 or 160 is a mess. To get good and drinkable water you need to drill below 135 towards 160.

It is not in all cases. It depends on the area. You can't compare the depth you have to drill to get water in Lagos, to places like Abuja.

3 Likes

Re: My New Borehole Doesn't Produce Enough Water by Ebenezer2021(m): 9:04pm On Nov 04

Flangelo12:
We're you on site. when the borehole was drilled?

Did you observe its development and was a pump test conducted?

Did you observe the runoff?

How many casings did you utilise?

Were they PVC or steel?

Did you observe the gravel packing?

Grouting?

How many screens were used and at what depth?

you always claim to know everything.
This isn't Iran vs US war thread

1 Like

Re: My New Borehole Doesn't Produce Enough Water by femi4: 9:07pm On Nov 04

Think9ja:
Good day guys,

In April this year, I contacted a driller to drill a borehole for me. Before embarking on this project, a survey was carried out and the survey says there's water. The survey recommended that we drill a maximum of 110m. The same people that did the survey are the same people that drilled the borehole.

After they finished, we didn't immediately install the pumping machine until after a week. I have to also say that a day after they finished drilling, it rained a bit, but the casing was properly covered. I could see water near the top of the casing, like five meters away. I don't know if it was because it rained the previous night or it was water from the borehole.

After installing the pumping machine, we noticed that during pumping, the force drops drastically after about 30mins. We didn't make a big deal out of it at the time because we thought the well was still developing.

Now it's been nearly seven months and nothing has changed. I did a little experiment; I switched on the generator and timed how fast it will take to fill a 20L keg and I repeated it after 30mins. For the first time, it took 17 seconds and for the second time, it took 65 seconds. I had to turn off the generator because the water was no longer gushing out well.

Also, during pumping with light, the force is poor but the water is very clean. But during pumping with generator, the force is strong for the first 20-30 minutes, but then the water is not clean. It looks browny and sandy.

I have never been able to get upto 2000L anytime I pump.

Even after turning off the generator and leaving it to recover, it's still the same problem

I also have to say that there are two boreholes and two wells within 30-40 meters from where mine is. Whenever they pump, I can see their tanks getting filled up, even though the tank is not the same size as mine. The wells too have adequate water, even though it dries up when the crowd is much. I don't know if these are all factors that can affect my yield. I just want to be able to get 5k liters a day.

For more info, I attached the survey report for proper diagnosis. Please, help me

Thats what you get when you contact I know the person that can do it cheaper

1 Like

Re: My New Borehole Doesn't Produce Enough Water by stagger: 9:08pm On Nov 04

Think9ja:
Good day guys,

In April this year, I contacted a driller to drill a borehole for me. Before embarking on this project, a survey was carried out and the survey says there's water. The survey recommended that we drill a maximum of 110m. The same people that did the survey are the same people that drilled the borehole.

After they finished, we didn't immediately install the pumping machine until after a week. I have to also say that a day after they finished drilling, it rained a bit, but the casing was properly covered. I could see water near the top of the casing, like five meters away. I don't know if it was because it rained the previous night or it was water from the borehole.

After installing the pumping machine, we noticed that during pumping, the force drops drastically after about 30mins. We didn't make a big deal out of it at the time because we thought the well was still developing.

Now it's been nearly seven months and nothing has changed. I did a little experiment; I switched on the generator and timed how fast it will take to fill a 20L keg and I repeated it after 30mins. For the first time, it took 17 seconds and for the second time, it took 65 seconds. I had to turn off the generator because the water was no longer gushing out well.

Also, during pumping with light, the force is poor but the water is very clean. But during pumping with generator, the force is strong for the first 20-30 minutes, but then the water is not clean. It looks browny and sandy.

I have never been able to get upto 2000L anytime I pump.

Even after turning off the generator and leaving it to recover, it's still the same problem

I also have to say that there are two boreholes and two wells within 30-40 meters from where mine is. Whenever they pump, I can see their tanks getting filled up, even though the tank is not the same size as mine. The wells too have adequate water, even though it dries up when the crowd is much. I don't know if these are all factors that can affect my yield. I just want to be able to get 5k liters a day.

For more info, I attached the survey report for proper diagnosis. Please, help me

@puskin, @naijacutee, @dominique, Mynd44, fergie001, help me push to front page, please.

The bolded is your answer. Never drill a borehole in the rainy season, especially if you are targeting a deep well that bypasses the surface water table. Drill in the height of the dry season in your area. If you drill in the rainy season, the rains would have altered the water table and give the survey a false result. Only when the dry season comes do you find out the truth.

I did mine in mid February, height of the dry season in my location. The survey gave me 180m, with the aquifer starting at 150m. This gave us nearly 30m of water depth to work with. It was even done by a Nairalander. That borehole has never dried or suffered a dropoff in production in 6 years.

Also the pump is not supposed to be dropped right at the bottom, else it will become blocked by sediment. You have to raise the pump at least 5m off the lowest water depth so the pump is always immersed in water. Then you flush your borehole once a year.

10 Likes 2 Shares

Re: My New Borehole Doesn't Produce Enough Water by Shedrack777: 9:09pm On Nov 04

What type of borehole is 110m? Which part of Nigeria please? And let me shock you; your borehole is on the surface of the earth. It's not inside water. Guy, maybe you're cheated or you didn't pay for up to 15n

1 Like

Re: My New Borehole Doesn't Produce Enough Water by MaziObinnaokija: 9:14pm On Nov 04

Nah UpNorth. sad

..Why not ask your neighbours to give u the contact of their borehole driller?Ever drink pure wota there lipsrsealed

? God help u.

3 Likes

Re: My New Borehole Doesn't Produce Enough Water by stagger: 9:15pm On Nov 04

Think9ja:
Good day guys,

In April this year, I contacted a driller to drill a borehole for me. Before embarking on this project, a survey was carried out and the survey says there's water. The survey recommended that we drill a maximum of 110m. The same people that did the survey are the same people that drilled the borehole.

After they finished, we didn't immediately install the pumping machine until after a week. I have to also say that a day after they finished drilling, it rained a bit, but the casing was properly covered. I could see water near the top of the casing, like five meters away. I don't know if it was because it rained the previous night or it was water from the borehole.

After installing the pumping machine, we noticed that during pumping, the force drops drastically after about 30mins. We didn't make a big deal out of it at the time because we thought the well was still developing.

Now it's been nearly seven months and nothing has changed. I did a little experiment; I switched on the generator and timed how fast it will take to fill a 20L keg and I repeated it after 30mins. For the first time, it took 17 seconds and for the second time, it took 65 seconds. I had to turn off the generator because the water was no longer gushing out well.

Also, during pumping with light, the force is poor but the water is very clean. But during pumping with generator, the force is strong for the first 20-30 minutes, but then the water is not clean. It looks browny and sandy.

I have never been able to get upto 2000L anytime I pump.

Even after turning off the generator and leaving it to recover, it's still the same problem

I also have to say that there are two boreholes and two wells within 30-40 meters from where mine is. Whenever they pump, I can see their tanks getting filled up, even though the tank is not the same size as mine. The wells too have adequate water, even though it dries up when the crowd is much. I don't know if these are all factors that can affect my yield. I just want to be able to get 5k liters a day.

For more info, I attached the survey report for proper diagnosis. Please, help me

@puskin, @naijacutee, @dominique, Mynd44, fergie001, help me push to front page, please.

1 Like

Re: My New Borehole Doesn't Produce Enough Water by AmalaAtiEwedu: 9:18pm On Nov 04

Think9ja:
Good day guys,

In April this year, I contacted a driller to drill a borehole for me. Before embarking on this project, a survey was carried out and the survey says there's water. The survey recommended that we drill a maximum of 110m. The same people that did the survey are the same people that drilled the borehole.

After they finished, we didn't immediately install the pumping machine until after a week. I have to also say that a day after they finished drilling, it rained a bit, but the casing was properly covered. I could see water near the top of the casing, like five meters away. I don't know if it was because it rained the previous night or it was water from the borehole.

After installing the pumping machine, we noticed that during pumping, the force drops drastically after about 30mins. We didn't make a big deal out of it at the time because we thought the well was still developing.

Now it's been nearly seven months and nothing has changed. I did a little experiment; I switched on the generator and timed how fast it will take to fill a 20L keg and I repeated it after 30mins. For the first time, it took 17 seconds and for the second time, it took 65 seconds. I had to turn off the generator because the water was no longer gushing out well.

Also, during pumping with light, the force is poor but the water is very clean. But during pumping with generator, the force is strong for the first 20-30 minutes, but then the water is not clean. It looks browny and sandy.

I have never been able to get upto 2000L anytime I pump.

Even after turning off the generator and leaving it to recover, it's still the same problem

I also have to say that there are two boreholes and two wells within 30-40 meters from where mine is. Whenever they pump, I can see their tanks getting filled up, even though the tank is not the same size as mine. The wells too have adequate water, even though it dries up when the crowd is much. I don't know if these are all factors that can affect my yield. I just want to be able to get 5k liters a day.

For more info, I attached the survey report for proper diagnosis. Please, help me

@puskin, @naijacutee, @dominique, Mynd44, fergie001, help me push to front page, please.

No fear water dey the borehole.
E get wetin dem d call am, I don forget d name.
Water go come back cool

Re: My New Borehole Doesn't Produce Enough Water by Rolimathematics: 9:29pm On Nov 04

Reminds me of Lekki borehole
The water resemble Bonvita Choco Milo
E remain to add am peak milk grin

Lekki people dey suffer

5 Likes

Re: My New Borehole Doesn't Produce Enough Water by erico2k2(m): 9:35pm On Nov 04

ghettochild:
U are asking us the question u are supposed to ask the people who drilled the borehole..
They need to come redrill...the hole is partly blocked

Or not deep enough simple.

Re: My New Borehole Doesn't Produce Enough Water by ImmaculateJOE(m): 9:43pm On Nov 04

stagger:
The bolded is your answer. Never drill a borehole in the rainy season, especially if you are targeting a deep well that bypasses the surface water table. Drill in the height of the dry season in your area. If you drill in the rainy season, the rains would have altered the water table and give the survey a false result. Only when the dry season comes do you find out the truth.

I did mine in mid February, height of the dry season in my location. The survey gave me 180m, with the aquifer starting at 150m. This gave us nearly 30m of water depth to work with. It was even done by a Nairalander. That borehole has never dried or suffered a dropoff in production in 6 years.

Also the pump is not supposed to be dropped right at the bottom, else it will become blocked by sediment. You have to raise the pump at least 5m off the lowest water depth so the pump is always immersed in water. Then you flush your borehole once a year.

Please, I don't understand your last paragraph.

I too is planning to dril borehole.

I want to get as much information as possible and align it with that of the driller I will contact.

My location is Yola, Adamawa State

Re: My New Borehole Doesn't Produce Enough Water by samwash(m): 9:48pm On Nov 04*

At what time of the year did you drill this borehole, borehole are best dug during dry season, same applies to wells as well.
From your explanation I presume it was dug during the raining season as you explained that after the drilling, rain fell that evening.
In a lean man explanation, the drilling never really reach the main water aquifer, you will still struggle to get more water when we hit the heart of the dry season. That's why you see some borehole not bring forth water during the dry season because the drilling has not gotten to the main water table.
Just get this explanation, it's like you want to drink water from a long 2ltr water bottle with a 10cm straw which will not get to the bottom of the water bottle, after drink to the depth of the straw, you can't drink further because the straw can reach the bottom of the water bottle.
Solution; it either you manage it or you will have to re-drill, better still consult another specialist to reacces the borehole or do a proper survey.

Re: My New Borehole Doesn't Produce Enough Water by Think9ja(op): 10:29pm On Nov 04

ghettochild:
U are asking us the question u are supposed to ask the people who drilled the borehole..
They need to come redrill...the hole is partly blocked

Thank you, I really appreciate

Re: My New Borehole Doesn't Produce Enough Water by Think9ja(op): 10:30pm On Nov 04

Ujaino:
AFOSINO DRILTECH.
Firstly, at what depth was the borehole dug?
Why I asked the question is that they might have not gotten to the major fracture before they terminated their drilling.

We are into borehole drilling, geophysical survey and general water project management.

The borehole was dug at a 110m depth, which is the maximum depth based on the survey

Re: My New Borehole Doesn't Produce Enough Water by Think9ja(op): 10:31pm On Nov 04

Flangelo12:
We're you on site. when the borehole was drilled?

Did you observe its development and was a pump test conducted?

Did you observe the runoff?

How many casings did you utilise?

Were they PVC or steel?

Did you observe the gravel packing?

Grouting?

How many screens were used and at what depth?

Yes, I was on the site when the borehole was drilled.

Re: My New Borehole Doesn't Produce Enough Water by Think9ja(op): 10:32pm On Nov 04

LordLicifer:
We no know! Stop disturbing us.

No vex. Na my investment be that

Re: My New Borehole Doesn't Produce Enough Water by Think9ja(op): 10:33pm On Nov 04*

Flangelo12:
The geophysics result is suspect.

Unlikely you use a spread of 150 metres in your survey and you penetrate 150 metres depth.

Secondly, it's important for us to know the location.

It says its basement complex.

Quite unlikely you'll get to 150m in basement.

The location is Keffi, in Nasarawa State

Re: My New Borehole Doesn't Produce Enough Water by Think9ja(op): 10:35pm On Nov 04

Isholad11:
Get a continuous on and off timer. A floater switch, which will off it completely when the tank is full. Simple

The tank doesn't get filled even if it's 12hrs of pumping

Re: My New Borehole Doesn't Produce Enough Water by Think9ja(op): 10:39pm On Nov 04

baconline:
From what u said, u really cant get the 5000 litres but u can manage the hole and get the most out of it. If this test u carried out is recently the yield will still reduce in the peak of the dry season. Use a liquid level control to cut the power when the level of water is low and start pumping when the level is high thats the best u can get from the hole. It is what it is

Actually, it has been like that even during the peak of the raining season. The only difference is that I didn't test it then. A lot is at stake for me financially if there's no solution to this

1 2 3 4 Reply

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