Metal spray gun vs. plastic on turf

Discussion in 'Pesticide & Herbicide Application' started by villagegreenlandscape, Mar 27, 2008.

  1. villagegreenlandscape

    villagegreenlandscape LawnSite Member
    Posts: 69

    I've always used a plastic gun with a fixed nozzle that creates the larger drops for my turf applications and a metal one with an adjustable nozzle only for plants because that's what Lesco recommended. I noticed my tech guy using the metal one today and when I asked him why he said he liked the coverage it gave better than the plastic one. He's applying the correct amount per sqft. Is there a reason why the plastic one should be used over the metal one on turf? BTW I'm applying 3way, Pre-M and liquid fert.
     
  2. RigglePLC

    RigglePLC LawnSite Fanatic
    Posts: 12,337

    I would suspect the metal adjustable nozzle would put out less gallons per minute. Check on this. It probably produces variable and smaller droplets--and therefore is more likely to drift. Could be a lot worse if weather is windy. Fertilizer burn might be more likely.

    The showerhead nozzle like on the Chemlawn gun is designed to produce a bigger droplet--so that drift is almost zero with the white nozzle. Slightly more with the smaller droplets from the green and other colors. You get less solution on your pants.

    I suppose you Pre-em users wear yellow pants--so it doesn't show so much. LOL.
     
  3. teeca

    teeca LawnSite Bronze Member
    Posts: 1,202

    yah, and the plastic is lighter too!
     
  4. PSUTURFGEEK

    PSUTURFGEEK LawnSite Senior Member
    Posts: 579

    the jd9 is not really designed for turf care apps unless your'e doing veg control and you need the range.
     
  5. Ric

    Ric LawnSite Fanatic
    Posts: 11,957

    Geek

    The JD9 gun has a turf nozzle also. It is a shower head type.
     
  6. PSUTURFGEEK

    PSUTURFGEEK LawnSite Senior Member
    Posts: 579

    Dick, yeah I know they make that but it's very awkward spraying large properties with that gun.
     
  7. vegomatic40

    vegomatic40 LawnSite Senior Member
    from 6
    Posts: 406

    The jd-9 was originally a Japanese spray gun manufactured to blast barnacles and other junk off the bottom of dry-docked ships. It's specialty is handling high-pressure/low volume fluids. With the various nozzles sizes/designs available, I'm sure it is quite capable of spraying turf but I'm not sure I would use it for that. The cast-aluminum body of the gun would likely be pretty cold to handle on chilly days and heavy as others have mentioned. The durability of the "innards" of the gun comes into question as well. While I have no doubt that it resists corrosion, the valve/spring assembly may have problems with products such as chelated iron or gummy surfactants. The patented Lesco/Chemlawn gun (patents purchased from Chemlawn) on the other hand was designed for only one thing...spraying turf day after day with zero maintenance between rebuilds. I would rather use a purpose-built tool or machine any day than something multi-purpose or "modified".
     
  8. villagegreenlandscape

    villagegreenlandscape LawnSite Member
    Posts: 69

    Thanks for the responses. The tip on the plastic Lesco gun is yellow. The reason he switched to the metal one was that he felt he was coating the weeds better and getting better results with the very fine droplets. Is he really sacrificing any coverage using the shower head type?
     
  9. Ric

    Ric LawnSite Fanatic
    Posts: 11,957

    Geek

    I didn't say it was the best tool for the job. If you knew of the nozzle, Why didn't you say it?
     
  10. PSUTURFGEEK

    PSUTURFGEEK LawnSite Senior Member
    Posts: 579

    Dick, It doesn't really matter does it?
     

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