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  1. MEM1

    Soil Sampler Collection Vacuum

    diyfarmer: Yes, buckets are emptied manually. They are kept separate because the state regulatory agency requires a 0-6" and a 6-24" sample but will accept a 0-6" for organic matter and phosphorus and a 0-24" for Nitrate. I'm currently building a new machine to take a 0-6" and 6-24" sample...
  2. MEM1

    Soil Sampler Collection Vacuum

    Attached is my current setup. I can't see how chain buckets would work. I like the idea, just don't see how to make it work with a setup like this. What I was thinking is more like a blower setup on a grain air cart. Blowing air in onside of the collection bucket and pulling out the...
  3. MEM1

    SCS CN Values for Railroads

    Not sure if you viewed this thread. https://www.eng-tips.com/viewthread.cfm?qid=288097
  4. MEM1

    "Punch sampler" or "Punch boring"

    Yep, direct push technology with screen sampler.
  5. MEM1

    "Punch sampler" or "Punch boring"

    Sounds to me like that would be a reference to direct push technology (geoprobe, power probe)
  6. MEM1

    Soil Sampler Collection Vacuum

    Hello all, I am in the process of building a soil sampler to collect agronomic samples. The unit will use a one inch auger to pull the sample. What I am thinking about is a soil collection system using a vacuum similar to a woodshop dust collector. My plan is to run the auger through a...
  7. MEM1

    Relationship between density and permeability

    What area are you located in, and what is the pond for? In Kansas we have to prove the pond will pass seepage requirements by pulling Shelby tubes post construction.
  8. MEM1

    Running two motors with one pump keeping speed constant.

    The system is being designed to accommodate two pumps. I believe this will be the easiest and cheapest way to go. Know anyone that wants to buy a 20 gpm clutch pump? It is most likely a lot more pump than I need if I go with two pumps.
  9. MEM1

    Running two motors with one pump keeping speed constant.

    Accuracy isn't of major importance. I just don't want a system that starves one motor over the other. Eventually encoders and servo valves will be installed after I get the kinks worked out. My issue is the dividing the flow. I don't know what components are available. Are there dividers...
  10. MEM1

    Running two motors with one pump keeping speed constant.

    Peak engine torque is at 2500 rpm. I can run slightly above that. I just don't want to run it at 3600 rpm if I don't have to. It isn't about fuel consumption. I figure the easier I can run things, the longer it will last. I'm liking the idea of two hydraulic pumps. I think I can make two...
  11. MEM1

    Running two motors with one pump keeping speed constant.

    Thanks for the insight. The load won't change a lot. I currently use a unit (geoprobe 5400) that runs a hydraulic cylinder and an auger motor. The auger is only 1" in diameter and I am only going 24" deep. The problem I have now is if I am in a clay soil that has a little moisture the auger...
  12. MEM1

    Running two motors with one pump keeping speed constant.

    Hello All. I am working on a soil sampling unit that will be run by two motors and one pump. I want the motors to run at constant speeds regardless of the load. I know nothing about hydraulic circuits and I'm looking for advice on the proper components to make the system work. The two motors...
  13. MEM1

    sensers and communication for automated cattle trap

    Might look into stepper motors and Arduino. Maybe using a laser for the trigger sensor. Look into envirodiydotcom. They have an Arduino based board called the Mayfly. It has solar charging capabilities and built in connections for xbee radios. If you are looking a diy solution, this is...
  14. MEM1

    Comparing small footprint dewatering systems - for wastewater or brewery waste

    -Your second option is not unlike what is used to remove solids from dairy flush water waste. I have a client that uses them. They seems to work ok. Do a search for dairy manure separator screen. I'm sure this isn't exactly what you are looking for, but it might give you an idea of the end...
  15. MEM1

    soil moisture and temperature sensor

    http://stepspro.com/product/theprofiler/ Might have a look at these systems.
  16. MEM1

    Estimating Evaporation from Resevoir

    This really needs to be done using onsite weather and water surface temperature data. Jay Ham developed a test to estimate evaporation based on local climate data using an onsite weather station and water surface temperature using an infrared thermometer. The following link will take you to an...
  17. MEM1

    Evaporation calculation

    We do overnight water balance tests on ponds. The methods and equations can be found in Jay Ham's research paper. The evaporation is calculated using the bulk transfer equation. Do a google search for overnight water balance test. That should bring it up. The calculations are done in our...
  18. MEM1

    Shelby Tube Permeameter

    I am assuming you are not using a flexible wall permeameter. The testing we do ASTM D5048 is the flexible wall type. There was an engineer around here that used to use a different method, not sure which standard, but I believe he was cutting the Shelby tubes and placing the porous stone on top...
  19. MEM1

    Reservoir Water tightness Check

    We conduct water balance tests following procedures determined by Jay Ham. The following link is to the ASABE paper. If you search long enough you can find the research paper online. https://elibrary.asabe.org/abstract.asp?aid=27405&t=2&redir=&redirType=
  20. MEM1

    Volume calculation

    I use autocad civil 3d. It is pricey but does the job. Might be something out there cheaper. Civil 3D can calculate earthwork volumes based on surface comparisons, cross sections and others. It will also calculate pond volumes based on contour surface areas. But again it is pricey. 8000 -...

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