POOL BLASTERWater Tech Grit Gitter Manual Cordless Hot Tub and Spa Vacuum Cleaner for Spot Cleaning Sand and Dirt - Lightweight Handheld Design

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 practiced with it. I got all the air out. And I then I squeezed the bottle underwater full of water and I squeezed the bottle and then I put it over the sand and let go of the bubble and it didn't suck it up that's all I have to say. This thing probably took 50 cents to make.

When the spa vacuum works, it does everything I need it for. The issues I have had are:1. Latest unit I recieved - one of the two check valves was too tight to move. I replaced the valve using one from my prior broken unit. (Or else you would have needed to heat the valve leg to deform it slightly to allow it to move freely)2. The rubber bulb will not last forever, expect a few years of use before it tears.3. The debris screen works but could be secured better.

Considering the alternatives, which to me seemed quite expensive, this little sucker hits the sweet spot of working well enough for the price. It takes a bit of practice to get it to work optimally, but once you get your technique locked in, you're golden. Debris may occasionally escape upon squeezing the bulb, but I've been able to minimize this to an acceptable level using these steps:1. Point the head away from the grit. This will keep the outflow from step 2 from pushing the grit away.2. Squeeze the bulb hard and fast. This will ensure the inflow check valve closes quickly and tightly, preventing grit from escaping the bulb.3. Put the head over/in front of the grit.4. Release the bulb as you move over the grit to be collected.5. Move the head away from any remaining grit before the bulb completely fills, I'd guess around 2/3 full. Any grit sucked up in this last part of the stroke may not make it far enough into the device to get past the check valve and will thus get shot out on the next squeeze.Using this technique I've gotten quite efficient at my grit gitting. I even used it as a "critter gitter" the other day to save a spider that fell in! I hope it remembers this and repays me by feasting on some of these mosquitoes from my neighbor's stagnant water feature...

The media could not be loaded. Yes, it does work. It is small, it takes manual squeezing, it only sucks in a little at a time, and you have to hold it on the bottom surface as you go, but it does work. I'd never use it on a pool, or even a large spa, but for my little spa - WONDERFUL! You can buy a vacuum stick for $45 (or more) or you can use this for less than $20. The dark blue chamber/bulb holds water, the green nose has a 1-way valve, screen, and holding chamber in it, and the yellow/flower part goes against the bottom you want to vacuum - the little teeth keep it from sucking/sticking to the bottom, holding it just off enough so it can suck in water and the grit on the bottom with it. When you squeeze the blue part, the valve between the grit holding chamber and the blue bulb closes so it pushes water out some exit ports around the blue/green seam. When you <slowly> release it, the valve opens and as the water is sucked into the blue area, it sucks it through the yellow part, trapping debris in a small screen before the water passes on into the blue bulb. The more you squeeze it and the slower you release it, the longer you can "vacuum" along the bottom - usually only a second or two. I'll try to post some pics and a video to show you. So, yes, it is cheap, but it does what I need it to do!

I bought this for my inflatable hot tub. It looked promising but upon using it, it doesn’t work as stated. When you squeeze the bottle it pushes the dirt away from the vacuum making it harder to suck anything up and when you do get it to suck up the dirt if you squeeze it too hard the dirt will just expel right back out of the bottle. I really wanted to like this because of its simplicity but it simply doesn’t work as intended.

Buyer Beware!! I purchased this for use in our hot tub. Put it together did a couple practice squeezes & it fell apart! Also no where does it state a restock fee of $23.67 thoroughly disgusted!