Water Shortages In Surin - July 2019

nomad97 said:
Maybe they have no water then. Or, the water at that level is not the good clean water you find further down.
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If the water table is at that level, it's at that level. The depth of the bore determines at which level the water comes from and could influence the quality.

When we were pumping from our well (about 10 years ago) the water table level varied between 6 and 10 metres. Our bore was 16 metres and that was the level that the water was coming from, i.e. filling the bore pipe from the bottom. If the water table is now 32 metres and the rain is not forthcoming then it is likely to drop further thereafter requiring a downhole submersible pressure pump to obtain water.
 
I am currently in three minds what to do for the best in respect of my water supply. It's no use drilling a 2" diameter hole if the water table is 32 metres down (and likely to fall) and the pump is only good for 30 metres. The second option is to drill a larger diameter hole for a submersible pump which is good for up to 90 metres. The third option is to do nothing at this point in time and see what develops.
 
Yorky said:
I am currently in three minds what to do for the best in respect of my water supply. It's no use drilling a 2" diameter hole if the water table is 32 metres down (and likely to fall) and the pump is only good for 30 metres. The second option is to drill a larger diameter hole for a submersible pump which is good for up to 90 metres. The third option is to do nothing at this point in time and see what develops.
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I am of the opinion that doing nothing is not the way to go. I am told that the water supplies from the quarries are finite and only good for the next couple of months or so. As yet, water is not flowing through the pipes to the outskirts of Surin. If and when it does, how reliable will that be and for how long? I also foresee things getting a lot worse before getting better. In six weeks time we enter the dry season and the next rains will not arrive until April / May 2020. We are likely to need above average rainfalls to fill up the reservoirs to maintain the status quo. At best, I do not see that happening before September 2020. This drought is likely to be with us for much longer than expected.

Like @Jeppe, we will be sinking a borehole and have been given a promise that this will be accomplished within the next 3 days, Monday at the latest. We have the approval of our close neighbours to sink this bore (not that we need it) and we will support them and their water needs from our well. The Mizani DP-301 deep well pump is good for 40 or even 60 metres so we are told. Stage 1 is to sink the bore and provide filtered water for domestic use. Stage 2 will be to provide a secondary water purification system to produce drinking water. Finally, for 6 months of the year there is usually a large lake at the back of our house and adjacent to our garden retaining wall. We are optimistic that below the lake will be good and adequate water reserves.
 
nomad97 said:
The Mizani DP-301 deep well pump is good for 40 or even 60 metres so we are told.
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The only information that I can find is that that pump is a submersible pressure pump. What size hole are you drilling? And how far down are you drilling?
 
Yorky said:
The only information that I can find is that that pump is a submersible pressure pump. What size hole are you drilling? And how far down are you drilling?
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I can assure you that pump is not a submersible. The Mizani DP-301 is the one Jeppe had installed. I agree that Mizani do make submersibles but I could not find this pump on the Internet. It does provide a jet of water down the bore to force the water up from below.

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We intend to drill a 2" bore and it looks like we will have to go to 30 metres or so. We may be lucky that the lake behind our house offers a different water table. Who knows?
 
"This photo was just posted. By the looks of the reservoir you're in deep shit. Get those bore in."

Indeed we are.
 
By the way. I have not been able to visit the meteorological web site for some time now. http://www.tmd.go.th/en/province.php?id=32. Does this page works for you guys? Also the weather radar site does not work for me.
It seems to be down most of the time. I have only get in there a few time for the last two weeks. Most of the attempt end up with web site not found.
 
Working on my iPhone, Jeppe
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Sent from my iPhone using Tapatalk
 
Jeppe said:
If the ground water level drops down to under the depth we have drilled yesterday, it will always be possible to drill deeper and expand it to 3". But I hope that will not be needed.
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What has been going through my head is that the water table level where we live was 6 - 10 metres down 10 years ago and possibly was the same last year (I had no way of checking and no reason to check). If it's now dropped to -32 metres there's a damn good chance it's going to drop further before the year end considering the forecasts.
 
Jeppe said:
By the way. I have not been able to visit the meteorological web site for some time now. http://www.tmd.go.th/en/province.php?id=32. Does this page works for you guys? Also the weather radar site does not work for me.
It seems to be down most of the time. I have only get in there a few time for the last two weeks. Most of the attempt end up with web site not found.
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Works perfectly for me every time on my PC. And I use the website many times a day. Something to do with your connection.
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Yorky said:
What has been going through my head is that the water table level where we live was 6 - 10 metres down 10 years ago and possibly was the same last year (I had no way of checking and no reason to check). If it's now dropped to -32 metres there's a damn good chance it's going to drop further before the year end considering the forecasts.
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And, according to your neighbours using their 8 metre maximum depth suction pumps, the water table where you live is still only 6 to 10 metres down. Scratch head big time. Meanwhile, across the fields and far away in the other part of Kokpalat, the water table sits at 30 metres below ground level. It has started to rain and, with luck, it will continue to do so for the next 6 weeks or longer. Unless someone is drawing down large volumes of water in the area, I would not expect the water table to be unduly affected. I would suggest a few domestic bores pumping 500 litres a day will not drop the water table by 20 metres or more in the space of a year. That said, what I know about water tables can be written on the back of a postage stamp. I know Jack Shyte!
 
Jeppe said:
If the ground water level drops down to under the depth we have drilled yesterday, it will always be possible to drill deeper and expand it to 3". But I hope that will not be needed.
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Only if the casing can pulled out if not its a new bore. This is personal experience and others that I have seen. Majority of casing used for Thailand is PVC and it is next to impossible to remove where in the west we use steel which can be removed.
 
If and its a big IF you have the area go with a 6 inch bore and a deep submersible pump which can be had as a 3,4,5 or 6 inch. ATB..remember him;;bad simle;;;;bad simle;;;;bad simle;;;;bad simle;; has said before that the 6 inch is the only way to go.
 
This photo is a sample of a deep well submersible pump. The units that you're talking about are not regardless of what the advertising BS on the unit says.

submersible-deep-well-water-pump-500x500.jpg
 
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