Jump to content

Boksida

Advanced Member
  • Posts

    879
  • Joined

  • Last visited

Posts posted by Boksida

  1. The mentioned device (aquarius) sounds like a conductivity meter which measures in mmho and is converted to resistance, by simple arithmetic. How this type of a surface measurement can be used to locate underground water source is beyond my imagination. The device is used for measuring water to determine ppm salt, etc. It is great to measure produced water for freshness, etc, but to locate and define the boundaries of a water source may be a tad beyond what it is designed for.

    Resistivity surveys are fairly common for groundwater exploration. I believe the Schlumberger brothers were pioneers in the field before they got into well logging. Have a look at this site

  2. hey guys, thanks for that, yeah bedrockguesthouse she is fluent in both, probably better than me in english sills sometimes i think, haha. anyway yeah ive checked that sight out a little, will have to have a closer look as i didnt notice how to find the companies/businesses on there, im sure its there somewhere.

    thanks

    Click on "Members Directory" and then "Select by Industry Type"

  3. Boksida Hi, Yes I know I can do then in a variety of ways without the pan but as said they never come out the way they do in the proper pan hence the reason I would like a proper pan ;)

    Anybody ? :huh:

    My apologies - I thought you were looking for a pan like this:

    post-42103-0-55253000-1300091145_thumb.j

    The electric or gas rice cooker does exactly the same thing except they are readily available in Thailand. No vinegar, no stirring, just crack the egg in the bowl and put the lid on.

    post-42103-0-96903700-1300092590_thumb.j post-42103-0-46913900-1300092654_thumb.j

  4. mkawish

    He put 4 metal rods into the ground took a digital reading on a box (which I think had the name Aquarius on it) and then moved the outside pair of rods 10mtrs at a time until he got a low digital reading he then moved the rods outward some more and he just told me that the water extended 25mtrs one way and 36mtrs the other way he told me how many ltrs of water there was (which I have forgotten) and that I could run the pump for 3 days without stopping before I might loose any flow he seemed very confident about it not like the other driller that I have used that used divining rods

    It is a resistivity survey. Google that and maybe add Wenner and Sclumberger Configuration in to the search and you will get lots of information.

  5. There is some legislation in effect governing water wells but it is seldom enforced for domestic use. It most certainly is though for commercial and industrial use. The main points are:

    1. Wells deeper than 30 meters require permission to be drilled..

    2. A government certified water well driller or geologist should be responsible for the operation.

    3. A separate pumping licence is required to produce from the well. The government can charge for the water used, based on meter readings.

    4. The Owner is responsible for obtaining all the licences. The drilling contractor may assist.as they can lose their drilling licence if caught drilling an unlicensed well.

    All this is handled by the Groundwater Division which is now part of the Ministry of Science and Environment. As I said, it is seldom enforced for household usage but you are vulnerable if somebody decides it is worth their while to harass you.

  6. Where was it located?

    guys . the madrid bar is located on soi number i .just off silom rd . as you come around the corner from silom rd .its on the right hand side . james

    I used to hang out there in the early 70s. It was famous for its pizzas - these were still a novelty then. It must have moved though as the original was on the left side of Patpong coming from Silom between the Lone Star (moved to Washington Square) and the Napoleon (long gone). I think it was the place where Jim Bowman topped himself by drinking rat poison at the bar. I gave up on Patpong after the night market started.

  7. Hi Boksida

    Sorry for the delay – I'm having problems connecting to the Internet (awaiting a new AIS cellsite). My 2hp Franklin is 3 phase so I was very interested in your comments re. use of a VFD to reduce the motor speed; I hadn't thought about that. I'm now looking for a supplier of an appropriate VFD – can you point me in the right direction and give me an idea of likely cost?

    Rgds

    Khonwan

    I am on the move at the moment and can not check but I believe Franklin have a system called SubDrive. The Bangkok agent I have dealt with has the email address chanyporn at anet dot net dot th (Ms Chany). Grundfos also have something I think is called Redi-Flo. The Grundfos guy I generally direct enquiries to is Khun Roongsak (rleamwanich at grundfos dot com). He is a bit on the lazy side and after I get the information from him I can generally buy a pump cheaper through one of their upcountry agents. All the VFDs I have bought in Thailand for use with submersible pumps have been from ABB in Bangkok. These are much larger than what you require so unfortunately I can not be too much help on prices. The fellow I have found most helpful there is Khun Sirichote (sirichote.singsa at th dot abb dot com)

  8. I don't think the manufacturers in Thailand allow the distributors to offer discounts on list price. The distributors are allowed to offer extra options and gifts which come out of their cut. Things like washing machines are not out of the question and bed liners, bull bars etc are common. Paying cash is a big drawback for them however as they miss out on their commission from the finance company. I would not mention cash until you had a firm agreement on the other goodies.

  9. I think Khonwan could still be close to the problem regarding electricity supply, but the problem may be with frequency fluctuation. This is much harder to detect but can cause changes in pump speed. I would suggest to anybody putting a new pump that they look for a 3 phase one. Several manufacturers are now offering variable frequency drives which can convert single phase power to three, and the 3 phase pump can then operate at different speeds. This is usually set up to maintain a constant pressure. The fellow that told you that he adjusted a valve on your pump is probably bullshitting as usually the only valve at the pump will be a non return valve.

    For Foreverford, I would think your opinion on your very, very good well man may need some rethinking. There are many companies in Thailand capable of performing pumping tests. It is a contractual requirement for most government and industrial supply drilling projects. Interestingly, one of the international leaders in this field is a Thai company. The economic reality is that none of these companies is probably going to be interested in testing a single domestic well in the sticks. You could do your own pumping test if you can maintain a constant flow rate on your pump. You will need to measure water levels at increasingly longer intervals throughout the test. A simple water level dipper can be made with twin flex electrical cable weighted with something like fishing line sinkers. The downhole ends have to be exposed but incapable of touching. When both wires are submerged, the electrical resistance will change and you can measure that with a simple ohmmeter. Practice in a bucket at the surface to see which scale gives you the best readings. Easiest way is to mark the cable at the static water level and measure the change from there with a tape. There also other ways involving tyre pumps, a gauge and plastic tubing but not as accurate. Interpretation of the test is done these days by anybody with the correct software but there is nothing wrong with plotting the results on semilog graph paper and doing it manually. Your nearest university may be able to help.

    Telling you that inline restrictors here are not available is just pulling your pants down. Every reasonable size town in Thailand has a machine shop capable of making something like this. Brass might be the best as it is cheap, easy to machine and resistant to corrosion. You can also buy Teflon in various size cylinders which would also do the job.

    Physical and chemical testing is mostly done in Bangkok, although most provincial universities with a geology/hydrogeology department will also do them. If you need the results on a regular basis, you might want to consider buying one of the simple handheld devices which will measure conductivity, TDS and pH.

  10. I have been using Travel Shoppe for close to 20 years and bought over 1.3 million baht worth of tickets there in 2010. I don't really know if they are the cheapest as I do not bother to shop around any more but have always found them reliable with excellent after sales service.

  11. Artesian wells are rare in Thailand, particularly in the north-east. There was a USAID funded project in the 60s which resulted in a publication called "Groundwater Water Resources of North-east Thailand". Several thousand water wells were drilled on the Khorat Plateau and my recollection (I've lost my copy) is that only two places had artesian conditions (flow to the surface without pumping), the majority being sub-artesian. I think one of these had a salt water flow. Not surprising considering that vast areas of the Khorat Plateau are underlain by rock salt.

    The Groundwater Division of the the Department of Science and Environment will have an office in your provincial capital with records of wells in your area showing depths, water levels, water chemistry etc.

    I have attached a couple of scanned laminated photos of artesian flows in northern Thailand - one while drilling and one after completion. The water was not drinking quality but OK for industrial use.

    post-42103-0-03317100-1296878038_thumb.j post-42103-0-94153400-1296878055_thumb.j

  12. Yes, a true cast iron pot for 700 baht is very cheap. True value quote me 3000 for similar size.

    I got mine at a Nakorn Kilo shop. I think they may have a few branches in the north of Thailand at least. To my surprise, I have just found that they have a website (www.nakornkilo.com). If their online store is run anything like their physical store, I would not expect much. I had to root around in the back of the shop to find what I wanted and then insist that somebody sell it to me.

    The pans are a good casting with no air holes and the inside and top have been machined. I have had quite a few items cast locally and usually the biggest cost is the price of the mould. I expected this to be cheaper as the mould would be very simple and the price should come down for a mass produced item.

  13. We will introduce shortly raro's hardcore hardware - still waiting for the prototype. A 30 cm (12" for the metrically challenged) pan with two handles, cast in one piece. No plastic handles or any other nonsense!

    First batch probably ready for delivery by end of Feb. And yes, we are just about starting to sponsor Thaivisa in this matter. B)

    These are available on the local market if you want to try one:

    post-42103-0-58317100-1296552754_thumb.j

    Sorry for the lousy mobile phone picture but it is a 30cm cast iron pan, 1 cm side and bottom thickness with the handles part of the same casting. The depth is 6-7cm. They work fine but are very heavy and also expensive. I think the two I bought were over 700 baht each.

  14. Just curious. What if a PR leaves without a re-entry permit, what are the consequences?

    Surely PR isn't invalidated....is it?

    They would have to leave the country illegally (without passing through Immigration) so presumably would return the same way.

    PR is also automatically cancelled if the holder is out of the country for a period over 12 months.

  15. I have a yellow book house registration, done at the Amphur's Office. So, what is the difference between the "red" book from police offices and the yellow book? Anyone know? WIth the yellow book, you can register a car or motorbike and also do not have to go back once a year.

    Lets try it this way. This is the post I'm questioning the statement of (and also do not have to back once a year). My understand the red PR book is also excepted as the OP house book, just as my yellow book is But the yellow book does not exempt me from reporting every 90days where the red PR does.

    Just to complicate things:

    The Certificate of Residence is light blue for the first issue. After renewal (when full of stamps), the new one is white.

    The Alien Book is always dark red and can be renewed for one or five year periods depending on your preference.

    A person with PR can appear on a dark blue house registration book as the head of the household or a resident therein, the same as a Thai.

    A person with PR has no reporting requirements unless leaving the country. A multiple re-entry with a validity of one year can be issued, or for one trip as preferred (different pricing). The TM card is left in your passport while out of the country and recovered on return.

    For the OP, I think you would have to go to the police station wherever you did your last registration. Failing that, the Amphur Muang station would be a good place to start.

×
×
  • Create New...