Are their issues with Walkbehind boom Spraying?

Discussion in 'Landscape Maintenance' started by DavidNJ, Dec 15, 2010.

  1. DavidNJ

    DavidNJ LawnSite Senior Member
    Messages: 519

    The Turf Tracer 60" is an 800# 23hp walk behind. I doubt pull start would work with the 750cc Kohler V-twin.

    The cart pulls ok, but uneven terrain can be a bigger issue and maintaining walking speed, especially with hills. However, if you think about my equipment--walk behind mower, walk behind dingo (actually, walk backwards a lot), walk behind aerator (always walking backwards), push spreader--you may see a theme. At least I don't try to carry it! But then there is the 4gal backpack electric sprayer I picked up at Harbor Freight, the Echo 770 blower, and the upcoming Maruyama 30cc multi-tool.
  2. cuttin-to-the-Max

    cuttin-to-the-Max LawnSite Bronze Member
    Messages: 1,337

    Its just going to be heavy...I know a Gallon is 10 pounds so add that to all your hardware and your looking At least 70 pounds!

    I made a small sprayer but i didnt want to mount it to my mower but i also wanted to be able to pull it with my golf cart or atv
    so i just made a nice wagon/ cart that i can pull with my ZTR
    THen my sprayer is mounted to a Skid like platform that i can just drop in and strap it down.

    Look on here! There are many guys with mounted sprayers
  3. DavidNJ

    DavidNJ LawnSite Senior Member
    Messages: 519

    The deck is 400#. If you run a leaf catcher, loaded that can be 70-100#, and hanging off one side rather than distributed across the frame. The mower is strong enough to handle different terrain and bang into stuff (within reason) and not break. The full tank, with 200# of water plus the 100# assembly shouldn't be a problem.
  4. avguy

    avguy LawnSite Senior Member
    Messages: 562

    Which Teejet nozzles did you get?
  5. DavidNJ

    DavidNJ LawnSite Senior Member
    Messages: 519

  6. greendoctor

    greendoctor LawnSite Fanatic
    Messages: 9,695

    I would switch those for the AI11002 nozzles. Regular nozzles drift badly and the 80 degree tips are the worst because you have to hold them so high to get the proper pattern overlap. An AI110 can be held 16" off the ground at a 20" spacing on the boom. I know this because I am in an extremely windy area. It is usually blowing 5-10 MPH and 20 with gusts becomes a no spray day.

    My typical spray rig is a 3 nozzle 40" hand held boom. I do not walk backwards. Aside from a little spray materials on my chemical resistant boots, there are no problems associated with my walking through the area I sprayed. Walking through a sprayed area also does not affect weed control either. Of course, my mixes are formulated with the correct surfactants and additives. I expect every droplet to cling and then spread. It is not like droplets of dew on the weeds after I have sprayed.
  7. DavidNJ

    DavidNJ LawnSite Senior Member
    Messages: 519

    That is using two factors, drop size (the AI11002 has about 3x the average drop diameter as the TP8002) and spray angle (110° vs. 80°) to reduce wind sensitivity by increasing drop mass and reducing spray height respectively.

    The TeeJet catalog lists the AI (Air Induction) nozzles for use between rows of crops. It indicates the bigger drops are better for systemic applications and the finer drops are better for contact application.

    Fimco probably chose the TP8002 for a combination of versatility and cost.

    Do you use the AI11002 for contact pesticides and foliar fertilizers?

    TeeJet catalog download page:
  8. greendoctor

    greendoctor LawnSite Fanatic
    Messages: 9,695

    I use AI1103-11008 dependent on application volume and wind conditions. It is hard to blow the spray pattern on an AI11008. I do use these nozzles for contact products and foliar nutrients. My spray equipment has the capacity to operate anywhere from 25-100+ PSI. For foliar nutrients, I operate the correct size tip to put down 1-2 Gallons per 1000 at over 50 PSI.
  9. greendoctor

    greendoctor LawnSite Fanatic
    Messages: 9,695

    There are also 2 AI nozzles, one is for broadcast on a boom and the other is for drop nozzles in between rows of crops. I use the one intended for broadcast application.
  10. bmac1996acc

    bmac1996acc LawnSite Member
    from in GA
    Messages: 147

    A gallon of what? A gallon of water is 8.34lbs.

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