Greenworks 40V 15 inch Dethatcher/Scarifier, Tool Only

This inexpensive, dethatching machine is amazing. I’m so glad I bought it. It is very lightweight and easy to use; it pulls itself along. The amount of thatch that flows out the back amazing. It left a layer of loose thatch material about 2-3 inches think. I filled TWENTY 42-gallon bags with thatch. My lawn area is about ½ acre, likely a bit less.A few things I learned.-- Cut the grass a little lower than usual. This makes it easier to keep the machine moving through your lawn.-- Dethatch when there is some moisture in the ground—not real wet, not dry. I did it after a good rain. I don’t think the dethatcher could do a good job if the ground was dry and hard.-- It seemed a good idea to heed the manufacturer’s recommendation to use an extension cord of the proper wire gauge depending on length. (The manual says you can burn up the motor if the extension cord is not of sufficient wire gauge for the lengthy. I paid about $40 for 100 foot cord. I didn’t want to use more than one extension cord so the cords would not pull apart. The hook on the handle for looping the cord to keep it from disconnecting works perfectly. (I once used some hedge trimmers that were a constant headache because the plug would pull out repeatedly.) I thought the extension cord would make the job pretty difficult, but it really didn’t. You just learn to work in patterns that keep the cord out of the way.-- The bag is useless because it fills up in just a few minutes. My advice: Remove it.This machine had enough power that it never got bogged down. But in areas where the grass was a bit high, it was harder to keep it moving through the grass. (Otherwise, it was very easy.)It was easy to switch the dethatcher blade and scarifying blade. I scarified to rough up the ground for reseeding.Before I bought the Greenworks dethatcher, I tried dethatching with a hand rake. Even though it was a well-designed dethatching rake, I soon realized that if I did the whole yard it would take a very long time and leave my old back aching probably for years. So I bought the Greenworks dethatcher. The price was very reasonable. I doubt I could have rented a dethatcher for less.No negatives. (There is a battery version of this dethatcher, but it costs about three times as much.)

Very good little machine, lightweight, easy to put together and works really well, although I have only used the dethatcher. I bought it without the battery as I already had 40V batteries from my other greenworks tools. Noise-wise it is not noisy at all and really good value for money. Power is good and collection is very good as well.

It is cheaply made. But for what it’s digging out of my yard is simply amazing. I did half of my yard before it started raining and got 12 bags of dead debris from out of my yard.For an electric plug in device it is simply amazing. And I would tell my friends, family and neighbors to get one of these.The two different blade types that it comes with give you a choice of what to use on your lawn.The bag is really small and doesn’t hold even a single pass for my yard size. But would be fine for smaller yards. Be careful if you have in ground sprinklers. The scarification blade will break them if they hit them. So make sure to mark the sprinkler head before you use it.Overall a great machine that is easy to use.Has more than enough power for the job.

I bought this last year because, after 29 years, my lawn was in serious need of a geed dethatcher. Normally, I wouldn't even consider a corded or battery electric piece of outdoor power equipment, but since this is something I'll use maybe onve a year, and I have a small yard, I decided to give this a try. Even though my yard is small, there are parts of it that are way too away from an outlet to use a cord. So, I ended up using a portable generator to operate it. But, I already had the generator, and already maintain it, so this wasn't an additional expense. Regardless, it does a really good job of dethatching. I've not tried the scarifier blades, but after using the dethatcher blades, I initially thought I was too aggressive and removed too much, but by early June, my lawn looked better than when it was brand new. It's not the simplest of setups for my application, but it works great and all things considered, id call it a simple and economical solution for a homeowner that uses it once or twice a year.

Easy to put together and use. Works incredibly well, results similar to expensive rental machines. Very lightweight makes it easy to maneuver and it seems robust but it will probably feel cheaper than your lawnmower and might not last as long. That being said, I still think it’s punching above its weight. Great value.