I bought this for one reason: to suck up the occasional small amounts of sand which works its way into our hot tub. Since I don't mind scooting around on my hands and knees while I'm in the hot tub, this looked like a simple, low-tech way to address the problem. I am pleased to report that, for this limited purpose, the device works very well. It is ingeniously designed to suck up the grit but keep the dirt and debris from escaping while you are using it (at least until it gets full......more on that in a moment.) So, if you have a hot tub and want to rid yourself of a SMALL amount of bottom-dwelling debris, this little device will do the job. The only thing which some people might find at least a little annoying (not me) is that you have to empty the device fairly often. I have an 8-person hot tub which had a small amount of sand and debris on the bottom, and I probably had to empty the device 10 times. Since it only takes 10 seconds to unscrew the top, toss out the water and debris, screw on the top and get back to cleaning, this isn't a big deal to me. (If you don't clean the device frequently, you'll find that after about ten "sucks", you will lose some debris when you squeeze the device to make the next pick up.) The device also works best on stuff which is laying on a hard surface. While it can be used for stuff floating or suspended in your water, you might "chase" the debris before you suck it up.

I've seen some people ask whether you can use this on an actual swimming pool, and my advice in that regard is clear: Unless you are a Buddhist Monk and are accustomed to building sand castles one grain of sand at a time, you will find that cleaning an entire swimming pool with this device to be maddening. While it is effective in SMALL areas, it will take you several weeks to cover the entire bottom of a swimming pool.

I've been fighting small debris like sand in my hot tub for years. I always dealt with it until I drained the tub every four months. Found this little gem while perusing amazon and was a little concerned about some of the negative reviews but for $15 (at the time) I thought it was worth a shot. After using it a few times I've had zero problems with it falling apart. It doesn't clean much at a time, but at least in my hot tub, the particles gather in one area. Once you figure out the motion to use it then you're all good. It only takes about 30 seconds to figure this out. Totally worth it

this is one of those-- why didn't i think of that? i really like this little thing. we have hard water so dealing with metal flakes and grit from time to time in b/t treatments. this thing does the job. just have to make sure it is on correctly and you follow directions. not for huge jobs- but, perfect for the hot tub corners. just get it ;)

Arrived promptly. Smaller tan expected but only because I had wrong expectations. It measures about 10" X 3". Once in the hot tub it squeezed quite easily. Has a good amount of suction. You will just have to "practice" a bit to get the hang of it's inhale and exhale. There is a small amount of exhale (push) of water out the nose as you squeeze and before the interior valve closes. If you don't allow for that you can easily end up stirring up what you were wanting to catch. Just a bit of practice. S ors the job just fine in our hot tub. For that purpose (small application) I would recomend it.

This little thing works great for keeping the grit off of the bottom of my hot tub. You just keep squeezing and releasing the the rubber bulb as you move it along the bottom of the hot tub. It has two valves inside that ensures water is only sucked in from the bottom pick-up head and water goes out from the top/middle section, after it flows through a little screen. You simply twist to release the two body halves and you can then dump out the grit and clean the little screen. The pickup head is really small, but it still only takes me a few minutes to get rid of the grit in my hot tub. I like not having to worry about batteries or cords.... very handy indeed.