First skid sprayer

Discussion in 'Pesticide & Herbicide Application' started by Above Par Lawns, Feb 18, 2014.

  1. GreenGuysLC

    GreenGuysLC LawnSite Senior Member
    Messages: 366

    I understand cavitation....and no has crossed my mind though that maybe it needs a larger suction hose
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  2. greendoctor

    greendoctor LawnSite Fanatic
    Messages: 10,122

    There should be no negative pressure on the suction end either. Not only will it make the pump noisy. That will tear the diaphragms prematurely. I use 1" ID spiral reinforced hose with no reduction fittings from tank to pump.
  3. GreenGuysLC

    GreenGuysLC LawnSite Senior Member
    Messages: 366 are you saying a larger hose may do more harm? Also what pressures are you pushing?
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  4. greendoctor

    greendoctor LawnSite Fanatic
    Messages: 10,122

    A larger hose is better. Smaller hoses cause cavitation and increase the possibility of air leaks due to the negative pressures created. I use conventional AG nozzles on a walking boom, so my pressures are up to 500 PSI. At those pressures, the set up had better be good. No air leaks or restrictions in the inlet.
  5. Above Par Lawns

    Above Par Lawns LawnSite Senior Member
    Messages: 512

    I used it for the first time today on 4 lawns (mine first).
    Here are some thoughts on my first time spraying...

    -I hate trees, I found myself wrapped around them a few times.
    -I will never use tracker dye again.
    -I need a 1/2 hose. The initial blast from the 3/8 hose was rather frustrating.
    -My chemlawn gun kept dripping for a few seconds after trigger was released. I'm buying a different one. Maybe a small boom wand or something.
    -180 psi is too much for small lawns while trying to apply 2 gal per minute. I'm going to recalibrate to about 4 or 5 gpm.
  6. kbrashears

    kbrashears LawnSite Senior Member
    Messages: 778

    1. You'll figure it out. It's an art.
    2. Good luck with that on dormant warm season turf.
    3. Too much psi.
    4. They all do. Make sure your seals are clean. Also, hold the gun up a bit when you release the trigger.
    5. 4-5 gym and you'll never get anything done. You'll be too busy filling up your tank.
  7. DA Quality Lawn & YS

    DA Quality Lawn & YS LawnSite Fanatic
    Messages: 9,286

    Interesting reading this thread....and after seeing all the nuances of running a skid, I am very glad I do a ride-on only.
  8. inzane

    inzane LawnSite Silver Member
    Messages: 2,478

    last year and this spring i've sprayed at 1.5 GPM and it works out good. I never liked 2GPM because the cone of spray comming out was so narrow with the yellow nozzles that i felt like i wasn't getting good coverage at first, but you kinda get used to it. I just like spraying with the blue nozzles better, and 1.5 GPM means more sq. ft. out of a tank. 4 or 5 gpm and your gonna have to re-fill to much probably. I just don't spray urea though, to afraid at that rate so i end up going over some yards with my spreader after to get the fert down depending on what round i'm on. that certainly does suck though.. lol. I need a ride-on when i get more bigger lawns. its not so bad double apping on the small lawns.

    as far as trees and obstacles, you will get used to it overtime.. i don't mind spraying so much. I always figure out the best place to start, pulll out to the farthest point and work my way back. you can probably just get a re-build kit for the chemlawn gun if its leaking on you.

  9. georgialawn88

    georgialawn88 LawnSite Bronze Member
    Messages: 1,075

    I would love to only have a ride on and that's it. The problem for me is in the winter when it rains for 3 days and then cloudy for a week im shut down waaaay too long.
  10. DA Quality Lawn & YS

    DA Quality Lawn & YS LawnSite Fanatic
    Messages: 9,286

    Confused - you can't spray anything in the rain regardless if its with a skid unit or ride on, right?

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