Roundup Fast Action Weedkiller Pump 'N Go Spray – 5L Ready-to-Use Glyphosate Formula – Kills Weeds & Roots with Visible Results in 1-2 Days – Refillable Pressure Sprayer with Extendable Lance

I’ve tried quite a few weed killers, and this is one of the more effective ones I’ve used — especially if you want something ready-to-use that actually kills weeds at the root, not just the surface. The Pump ‘N Go design is a big win for convenience. There’s no mixing or measuring — just pump and spray. Once pressurised, it delivers a steady, even spray which makes it easy to cover patios, edges, and larger areas without constantly stopping or tiring your hand. What stood out most is how it performs over time. This is clearly a strong formula — weeds don’t just wilt, they continue to die off over several days and visibly shrink. I saw results within a couple of days, and it kept working well beyond that. I’ve uploaded photos from days 3, 4, 6 and 16 to show the progression. It also held up after some light rain shortly after application, which I wasn’t expecting, but it didn’t seem to affect the overall effectiveness. The smell is noticeable while spraying but not overpowering, and it fades fairly quickly once dry. In terms of safety, this isn’t something you’d want pets around while it’s still wet due to the strength of the ingredients. I kept pets completely away until it had fully dried, and I’d recommend doing the same. One thing to be aware of — I did feel slight dizziness while spraying, so it’s worth using this in a well-ventilated outdoor space and considering a mask or face covering if you’re sensitive to sprays. Pros: ✔ Ready-to-use — no mixing needed ✔ Even, consistent spray from the pump system ✔ Covers larger areas easily ✔ Starts working within days ✔ Continues killing weeds over time (not just surface-level) ✔ Still effective even after light rain Cons: ✖ Slight chemical smell during use ✖ Can cause dizziness if inhaled — take precautions ✖ Needs to fully dry before pets can access the area ✖ Initial pumping takes a bit of effort Overall: If you want a no-fuss weed killer that actually tackles weeds at the root and keeps working over time, this is a solid choice. Just use it with basic precautions, and it delivers exactly what you’d expect — even with a bit of unpredictable weather.

Purchased to use on driveway block paving, were pesky weeds, etc pop up. Very easy to put together and use, it appears to be working very well. I like the fact I can purchase refills, which can be attached to the original fittings. Will purchase again if the need occurs.

This stuff is great. Does exactly what you want and quickly. Absolutely stinks. I'd definitely recommend twisting the white end nozzle so that it sprays. That said, despite its size, I feel this large quantity won't last that long. Still: A huge saving on prices I've seen locally in stores. So, Amazon is the place to purchase. Ready to go and built-in pump is very useful, unlike previous weedkiller I've bought. Will probably buy again.

Been using this for years and never let us down, easy to use, very effective and low odour and does what it says on the tin.

Handy little size, an expensive way to buy it, but if you only need a bit it's good. Used to be better I'm sure, but it still kills most stuff.

Great weed killer, unfortunately the sprayer is complete rubbish, I could spit it out quicker. Have to stick with it though as no other way of getting liquid out as completely sealed unit

Package well. Nice size. Not bad price. Works well. I would order again. Pet friendly

Does a good job. Takes time but works well