Moisture meters..are you a idiot if you've not one?

Discussion in 'Irrigation' started by Mike Leary, Apr 24, 2007.

  1. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 21,603

    We've used the Lincoln Irrigation 12" probe for years, we've sent them back
    for re-grooving every few years as the probe wears. It's been a huge part
    of establishing "historical" run times in our sites over the years.am leonard.com
     
  2. Remote Pigtails

    Remote Pigtails LawnSite Senior Member
    Posts: 581

    Thanks Mike
     
  3. Remote Pigtails

    Remote Pigtails LawnSite Senior Member
    Posts: 581

    Mike-I didn't find it at leonard but I did find the lincoln at forestry supplies. it comes in 9" 24" or 36". I'm thinking a 9" is all I need. What do you suggest and why. Thanks
     
  4. PurpHaze

    PurpHaze LawnSite Fanatic
    Posts: 5,496

  5. Remote Pigtails

    Remote Pigtails LawnSite Senior Member
    Posts: 581

  6. PurpHaze

    PurpHaze LawnSite Fanatic
    Posts: 5,496

    The last time I used one was probably about 15 years ago while taking a soils class at a local college. We set up a test area and had four probes installed at various depths and then tracked the statistics over an entire semester. They were OK but I'm sure the technology has improved since then.

    I do know they had (or maybe still have) controllers that work off of soil potentiometers and our experience with them was terrible.
     
  7. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 21,603

  8. andersa

    andersa LawnSite Member
    Posts: 30

    That's a cool device!

    What moisture level should one keep in the ground for a healthy lawn? E.g., above 5? below 9?
     
  9. Mike Leary

    Mike Leary LawnSite Fanatic
    Posts: 21,603

    The meter comes with a sheet explaining what readings for various types
    of turf & plant materials are optimum. The bottom line takes some experience
    with the meter: what you want is to first saturate the soil & let it dry to just
    above "wilt point". By keeping track of days before irrigation, you are better
    able to set the controller. Remember to insert the probe to the bottom of
    the root zone. It's a big help..be carefull to avoid bending the probe in hard
    soils.
     
  10. andersa

    andersa LawnSite Member
    Posts: 30

    Suonds great. I may get myself one.
     

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