Lincoln moisture meter

Discussion in 'Irrigation' started by RhettMan, Jul 8, 2014.

  1. RhettMan

    RhettMan LawnSite Silver Member
    from Texas
    Posts: 2,119

    do these things read instantly and accurately or must they remain in place for a moment, 5 minutes, a day or so?

    your 3 cents please ?

    I would like something to say to my customers other than, "Your clay is rock hard, Mr./Mrs. Wonderful, just trust me" :)
     
    Last edited: Jul 8, 2014
  2. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 21,785

    I had a Lincoln in all my trucks, they are great and you can get the probes re-built. If adjusted correctly, a simple insert will tell you what you want to explain to Madge.
     
  3. RhettMan

    RhettMan LawnSite Silver Member
    from Texas
    Posts: 2,119

    what size do i get?
     
  4. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 21,785

    12", that way you don't have to bend over so much. :) They come with a pretty neat manual that will get you started.
     
  5. RhettMan

    RhettMan LawnSite Silver Member
    from Texas
    Posts: 2,119

    Hey thats a good idea! it will be easier for the Wonderful's to verify the rock-hardness :)

    I went ahead and got the 36".
     
  6. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 21,785

    Easy does it when inserting, the brass probe wand bends easy. The 36" is a good idea, I'd forgotten that's the size we had.
     
  7. RhettMan

    RhettMan LawnSite Silver Member
    from Texas
    Posts: 2,119

    how deep should i insert for st. augustine in clay loam?

    iv seen conditons here in which: the top inch or so is very hard, yet under that is anywhere from damp to soggy.

    then of course, there is the completely rock hard clay through and through.
     
  8. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 21,785

    I seem to remember the manual has the info. Once you get the Lincoln calibrated, I'd hope someone at extension service could give you guidelines, if the manual is not helpfull.
     
  9. RhettMan

    RhettMan LawnSite Silver Member
    from Texas
    Posts: 2,119

    guess who im asking if they cant :waving:

    Thanks Mr. Leary I'll get'er did.
     
  10. Kiril

    Kiril LawnSite Fanatic
    Posts: 18,298

    You insert it as deep as you need to .... i.e. the effective root zone depth and a little beyond. I use it to spot check, and I'll run it down until I hit saturated soil in clays for turf. If you push it down slowly while watching the needle you can get some idea of a drying profile over depth. Remember, it is not a precision tool, and should be treated as such. You "should" calibrate it on every site, but that is just not reasonable. Find a good representative soil for your area and calibrate it there.
     

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