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Customer Reviews for Roundup Weed and Grass Killer III with Pump 'N Go Ready-To-Use 2.1 Sprayer

Internet #100619041

Model #510011435

Store SKU #540008

  • Provide 10 minutes of continuous spray to treat your landscape
  • Will not harm surrounding untreated plants
  • No-mix formula saves you time

Customer Reviews

  • 3.9
    out of 1,621 reviews
  • 74% recommend this product
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Showing 1-30 of 1,621 reviews
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  • Verified Purchase
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  • Verified Purchase
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  • Verified Purchase
Roundup pomp not working properly.Still I have weed.
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Response from Roundup Consumer ServicesAug 10, 2023
We're sorry to read about your disappointment with Roundup Ready-to-use Weed & Grass Killer III with Pump 'n Go and appreciate your feedback.
For best results, prime the container by pumping 20-30 times, bottle should start to expand slightly as pressure is built. There may be some product crystallized in the sprayer tip. To remove any residue, soak the nozzle or sprayer tip in warm water for 15 minutes.
We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please reach out to us at 877-220-3089 if we can further assist. roundup
  • Verified Purchase
All weeds didn’t die.
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Response from Roundup Consumer ServicesAug 9, 2023
We're sorry to read about your disappointment with Roundup Ready-to-use Weed & Grass Killer III with Pump 'n Go and appreciate your feedback.
For best results, apply this product when daytime temperatures are consistently between 60℉ and 85℉. When nighttime temperatures are in the 40's, results will slow dramatically, but the product will still work, it just may take 3-5 weeks. It is recommended that the weeds (or lawn) not be cut for two days both before and after application to maximize leaf surface and absorption.
We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please reach out to us at 877-220-3089 if we can further assist. roundup
  • Verified Purchase
Could not make the pump work. Had to use the pump from my old one.
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Response from Roundup Consumer ServicesAug 9, 2023
We're sorry to read about your disappointment with Roundup Weed & Grass Killer and appreciate your feedback.

If first time using, make sure the hose connector is firmly pushed onto the connector on the pump/cap. You should hear a click when attaching the sprayer. Is the wand fully extended so that yellow button clicked into place on the handle part of the sprayer? To pressurize the container, pump 20-30 times. Bottle should start to expand slightly as pressure is built. As pressure goes down while spraying the spray will decrease to more of a sputter indicating the tank needs pumped again.

We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please reach out to us at 877-220-3089 if we can further assist. roundup
  • Verified Purchase
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  • Verified Purchase
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  • Verified Purchase
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  • Verified Purchase
The pump will not work ie. will not “pump”. We are going to return this purchase for an exchange!!!
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Response from Roundup Consumer ServicesAug 3, 2023
We're sorry to read about your disappointment with Roundup Ready-to-use Weed & Grass Killer III with Pump 'n Go and appreciate your feedback.

Make sure the sprayer is locked into spray position. Check the hose connector to make sure is securely snapped into place on the container. If it can be easily removed, then it is not properly attached, and the pump will not function properly. Listen for air leaking out from the cap. You may try opening the cap and making sure there is nothing on the top of the container where the cap goes or on the underside of the cap that is preventing a good seal. Replace cap, making sure it is on straight. Also, due to safety, after the container has reached a certain pressure point, a safety valve releases any additional pressure.

We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please reach out to us at 877-220-3089 if we can further assist. roundup
  • Verified Purchase
Roundup pump had a very weak stream, no matter how forceably I pumped it up
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Response from Roundup Consumer ServicesAug 3, 2023
We're sorry to read about your disappointment with Roundup Ready-to-use Weed & Grass Killer III with Pump 'n Go and appreciate your feedback.

Make sure the sprayer is locked into spray position. Check the hose connector to make sure is securely snapped into place on the container. If it can be easily removed, then it is not properly attached, and the pump will not function properly. Listen for air leaking out from the cap. You may try opening the cap and making sure there is nothing on the top of the container where the cap goes or on the underside of the cap that is preventing a good seal. Replace cap, making sure it is on straight. Also, due to safety, after the container has reached a certain pressure point, a safety valve releases any additional pressure.

We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please reach out to us at 877-220-3089 if we can further assist. roundup
  • Verified Purchase
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  • Verified Purchase
Effective at killing weeds, but the spray stream is very small (great for concentrated areas, not so much for a broader application). Still a good value for the price.
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  • Verified Purchase
Pump doesn’t work well so weak spray
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Response from Roundup Consumer ServicesAug 2, 2023
We are concerned to hear this. We would like the opportunity to gather some additional information and offer assistance. Please reach out to our Consumer Services team at 877-220-3089 for assistance. roundup
  • Verified Purchase
by
  • Verified Purchase
does not work weeds and grass still alive
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Response from Roundup Consumer ServicesAug 2, 2023
We're sorry to read about your disappointment with Roundup Ready-to-use Weed & Grass Killer III with Pump 'n Go and appreciate your feedback.

Weeds typically begin to show signs of wilt in 1 day; allow 1 - 2 weeks for complete control of the weeds. Apply when daytime temperatures are consistently between 60° - 85°F. We recommend that weeds not be cut for two days both before and after the product application to maximize leaf surface and absorption. Weeds with a waxy surface may need to be damaged with a rake before application so the product can more easily pernitrate the surface. Rain or watering within 2 hours of application may wash the product off.

We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please reach out to us at 877-220-3089 if we can further assist. roundup
  • Verified Purchase
Sprayer
The sprayer never worked correctly. The product just tricked out in a small stream no matter how I set it.
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Response from Roundup Consumer ServicesAug 7, 2023
We're sorry to read about your disappointment with Roundup Ready-to-use Weed & Grass Killer III with Pump 'n Go and appreciate your feedback.
For best results, prime the container by pumping 20-30 times, bottle should start to expand slightly as pressure is built. There may be some product crystallized in the sprayer tip. To remove any residue, soak the nozzle or sprayer tip in warm water for 15 minutes.
We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please reach out to us at 877-220-3089 if we can further assist. roundup
    Excellent product, easy to use.
    by
    • Verified Purchase
    Wand doesn’t work
    The wand would not work. I ended up pouring it into an old windex bottle and using that to spray the weeds. 10 mins since spraying… nothing is happening yet. Time will tell the weeds fate..
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    Response from Customer CareAug 1, 2023
    We're sorry to read about your disappointment with Roundup Ready-to-use Weed & Grass Killer III with Pump 'n Go and appreciate your feedback. With this product, visible results can be seen in 3 hours (curling or wilting of weed), with a complete kill in 1-2 weeks. It will take longer in cool or cloudy weather, under drought conditions, or when temperatures are either too high or too low for the weed to be actively growing. If it is the first time using this, check that the hose connector is firmly pushed onto the connector on the pump and that the wand is fully extended so that yellow button clicked into place on the handle part of the sprayer. Make sure to pump about 20-30 times before spraying to build pressure. Carefully unscrew the cap to make sure the siphon hose inside the container is still connected. We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please reach out to us at 866-324-2647 if we can further assist.
      by
      • Verified Purchase
      Not worth the time and effort
      Bought a week ago, took days to see results, followed directions, pumped 25 to 30 times, did not have continuous spray, week later, after weeds and grasses were thoroughly wet, they are still alive.
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      Response from Customer CareJul 31, 2023
      We're sorry to read about your disappointment with Roundup Weed & Grass Killer and appreciate your feedback. Weeds typically begin to show signs of wilt in 1 day; allow 1 - 2 weeks for complete control of the weed. We recommend that weeds not be cut for two days both before and after the product application to maximize leaf surface and absorption. For best results, apply when daytime temperatures are consistently between 65-85 degrees. We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please reach out to us at866-324-2647 if we can further assist.
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        • Verified Purchase
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        • Verified Purchase
        The chemical kills the grass very good. The sprayer does not work very well. You can get more chemical blowing through a straw then the sprayer
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        Response from Roundup Consumer ServicesJul 26, 2023
        We are concerned to hear this. We would like the opportunity to gather some additional information and offer assistance. Please reach out to our Consumer Services team at 877-220-3089 for assistance. roundup
        • Verified Purchase
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        • Verified Purchase
        It’s like the pump up 1 gallon sprayers they sell, but without the hassle of mixing and pouring. Also, don’t have to be concerned about a battery going dead bf contents are empty. So far, so good.
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        • Verified Purchase
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        • Verified Purchase
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        • Verified Purchase
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        • Verified Purchase
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        • Verified Purchase
        Showing 1-30 of 1,621 reviews

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        Weed Type

        Annual Bluegrass, Bahia Grass, Bermuda Grass, Bindweed, Black Medic, Broadleaf Plantain, Bur Clover, Canada Thistle, Crabgrass, Creeping Charlie, Dandelion, Dog Fennel, False Dandelion, Florida Pusley, Henbit, Knotweed, Lambsquarters, Mallow, Mouse-Ear Chickweed, Nimblewill, Orchardgrass, Oxalis, Pennywort, Prostrate Spurge, Puncture Vine, Quackgrass, Ragweed, Sandspur, Shepards Purse, Sow Thistle, Spotted Spurge, Tall Fescue, Torpedograss, White Dutch Clover, Wild Morning Glory, Zoysia Grass

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