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guys with zspray

Discussion in 'Pesticide & Herbicide Application' started by arborist, Apr 12, 2014.

  1. Landgreen

    Landgreen LawnSite Senior Member
    Messages: 252

    Sounds like you just need to adjust your spinner rpms. Does it spread 15' to the right and left as well? Mine throws only 8-9' on either side.
    Posted via Mobile Device
  2. ryhenry09

    ryhenry09 LawnSite Member
    from NY
    Messages: 9

    No, it seems to throw about 8' to sides.

    So your saying adjust throttle ? Wouldn't that affect the throw to the sides as well. Just seems weird that it throws that far forward . Thx!
    Posted via Mobile Device
  3. arborist

    arborist LawnSite Member
    Messages: 19

    try turning the spinner speed down
  4. RigglePLC

    RigglePLC LawnSite Fanatic
    Messages: 13,573

    More fert in the center is normal--that is why you must overlap the sides.
    But...it could also be an optical illusion from the angle your are watching. Does it look the same when someone else is driving your Z, and you are watching?

    Try the "plate test" Put out 12 paper plates in a row across the pattern. Drive across and then count the number or particles in each. This gives you an idea of the eveness of the pattern.
  5. Falcon50EX

    Falcon50EX LawnSite Senior Member
    from GA
    Messages: 994

    I had to re-index the spinner knob remove the set screw and turn it down.
  6. kbrashears

    kbrashears LawnSite Senior Member
    Messages: 777

    That method is fine, if you'll put a coating of oil or something on the plate to catch the prills. Otherwise, too many prills are going to skip off leaving you with an inaccurate measurement.
  7. dan_n_kc

    dan_n_kc LawnSite Member
    Messages: 4

    on my zspray if Im running at 3mph at 30psi it gives me .5 gallons per 1000. my lot size is 27500 sq'. the math would be for Lesco 3 Way is 1.3 x 2 x 27.5 = 75.2 ounces of lesco 3way and I'd fill up my resevoirs to 14 gallons?
  8. Raymond S.

    Raymond S. LawnSite Senior Member
    Messages: 996

    I don't know why you'd be going 3mph, or spraying at 30 psi...but anyway.
    Traveling at 5 mph and spraying at 40psi, using your .5gallon/1k nozzles with a 14 gallon tank you will cover 28k Sq ft. (Get it? 14 ÷ .5 = 28)
    1.3oz/1k Sq ft (28k) = 36.4 Oz
    Make it easy and figure 1oz/k and splash some sticker in there and call it good.

    Don't make it harder than it is. Start with the size of the tank. 18 gallon tank ÷ nozzle size (18 ÷ .5 = 36 ) so your tank covers 36k Sq ft. Much easier to figure product now knowing how far you're going to go and simply multiplying your recommended oz/k of product.
    dan_n_kc likes this.

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