how to get roundup out of sprayer?

[Ed_Indiana]

Years ago I bought 2 sprayers. One for just roundup and one for pesticides. I labeled them for what I use them for. Never a worry about cross contamination.

 

[captaincrab55]

Interesting link about: Cleaning Field Sprayers to Avoid Crop Injury...

G4852 Cleaning Field Sprayers to Avoid Crop Injury | University of Missouri Extension

From the above Link...


Sprayer cleaning agents

Cleaning agents should be selected based on the herbicide and formulation to be cleaned (Table 1). Cleaning agents should penetrate and dissolve pesticide residues and allow them to be removed when the rinsate is removed from the sprayer. The functions of cleaning agents are dilution, solubilization and deactivation. Commercial tank cleaning agents and detergents help remove both water- and oil-soluble herbicides and are recommended on many pesticide labels. The commercial tank cleaning agents usually perform better than household detergents and can deactivate some herbicides in addition to solubilizing them.

Some tank cleaning agents and ammonia solutions also raise the pH of the rinsate solution, making some products such as sulfonylurea herbicides more water soluble and thus easier to remove from internal sprayer parts. Chlorine bleach solutions will accelerate decomposition of sulfonylurea and some other herbicides into inactive compounds. However, chlorine is less effective at dissolving and removing sulfonylurea herbicide residues from spray tanks than ammonia solutions. Chlorine bleach should never be added to ammonia or liquid fertilizers containing ammonia because the two materials react to form toxic chlorine gas, which can cause eye, nose, throat and lung irritation. Fuel oil or kerosene is effective for removing oil-soluble herbicides such as esters and emulsifiable concentrates. The fuel oil or kerosene should be followed by a detergent rinse to remove the oily residue.

 

[captaincrab55]

Years ago I bought 2 sprayers. One for just roundup and one for pesticides. I labeled them for what I use them for. Never a worry about cross contamination.

I'll second that... That works for me with my hand held sprayers, but I must clean out the tow behind power sprayer when I fight off the pests & weeds on a larger scale..

 

[anojones]

I'll third the plan for two sprayers. I killed the lawn right next to the house spraying for pests due to residual roundup in the tank. I Now have a "roundup free" sprayer.

 

[hrcarver]

Round up is actually a great tank cleaner alone...it will remove all traces of 2-4D if you have any in there from your yard spraying. That said, you still have to remove the Round-up from the tank before going back. Rinse till you don't see bubbles-fill up part way, slosh around to get top and sides of tank, dump/pump out, repeat. Be sure to flush any agitation/return lines, booms, and hand wands during each step. If you want to be real sure, add some ammonia or get a tank cleaner product where-ever you buy your chemicals from and use that during one of your last flushes. I don't usually do this w/ RUP, b/c it comes out easily, but you can. Always remember to treat the flush water as chemically treated, don't do this in your yard, you'll not be happy. I tend to spray off my first tank or so of rinse on weeds around, sometimes they die, sometimes not, but it doesn't cost me much.

+1

Pull the plug/filter and rinse until no bubbles will be good enough for 90+% of uses. Be sure to flush the pump and hoses too.

 

[zzvyb6]

Using RoundUp in my sprayer produces some of the best grass on my whole property. It may wither a bit, but the grass that eventually pops up is nuclear proof. My driveway only responds to GroundClear.

 

[friesian]

I rinsed it out with water after I used round up a few weeks back. What else should I do to make sure I don't wipe out my grass? Thanks

I know this is old post but here i've seen this question alot here is a link that will tell you how to neutralize glyphosate and explain how to remove other pesticides in very good detail Proper Spray Tank Cleanout - CropLife. I hope this will help all who may need it. good day all

 

[PILOON]

Oh shucks, old post but flush and spray anywhere but not on the wife's flowers.