Quantum

Honest review, not sponsored, etc: this is our best robot yet! The house we purchased 12 years ago, came with a large in ground pool. We're also surrounded by pine trees, birches, maples, oaks, ... . Cleaning manually with a suction hose, wasting so much time, water and chemicals was not an option for me. Thus started the path with robotic cleaners. One particular brand we had 4 failures between motors and control boxes in 10 years; one dolphin robot would not climb walls, another one died and last year, in 2021, we actually ended up with TWO robots. An aquabot ( only really cleans floors despite saying it does walls ) and this mid range Dolphin Quantum. This Dolphin Quantum is hands down our best robot yet. I does not have all the bells and whistles, like remote control, wifi, fancy display ... but forget all that crap. Had it. Doesn't work ... or the robot dies and then you wasted an extra $250 $500 on fancy features you barely use. This robot ticks all the boxes for me: + extra large volume cleaning basket + two large soft scrubbing brushes (many others just have 1) + basket is easy to install, remove, open and clean out + no bags to clean for 5 - 10 minutes, that may blow off their tray (smart pool brand robots issue) ... just a simple sturdy rigid box with a full bottom that opens up + dead simple control box: power and pick 1 2 or 3 (for repeat cycle in n days) + cleans the floor, inside corners between floor and walls as well as the vertical walls + does a fabulous job cleaning around the water line and even moves sideways across the waterline (see video clip) + swivel cord = YES (see photo, video and note below) + has not gotten stuck on our steps into the pool + has not gotten stuck on our floor drain + fine and ultra fine filters are super easy to swap out Ignore the review for this robot that says there's no swivel. The white thing in that customer's picture is the swivel! As advertised. Don't know how they missed it. It works and is quite standard across the industry. Now there's a trick to having the swivel work for you - which I learned the hard way with our previous brand robot that we had 4 of, and they were notorious for tangling: >>> only give the robot as much cord as it needs! Put the robot in the water with next to no cord, get the whole cord stretched out on the deck, leave excess cord on the deck, and tuck away whatever amount of cord it does not need, then plug it in. If you have a 15x30 20x40 pool and chuck the robot in with all the cord, it may / will tangle. However if you have a 40 ft long pool and and you give it about 45-50 feet, it will untangle and swivel when it goes across to the deep end on other side of the pool. Has ours tangled in the past year? Minimally so. Sometimes, they just want to run in a circle a bit after they've taken a lot of cord into the pool, and in a year's time, two summer seasons, it's had a few minor issues with the cord. But no cord was tightly damaged and Nothing like when you don't have a swivel or when you give it unlimited cord. This thing has been a beast, with the standard (non pleated) filter, filling up its basket with leaves, seeds, ... it does a solid job on walls with its two scrubbers against algae, it comes up out of the water with the front and then scrubs the wall sideways for a bit. Absolutely fabulous. Now this year, we did end up with some water quality issues and excess algae. After fixing the water for phosphates, instead of doing the vacuuming with a suction brush on waste as they said at the pool store ... don't use a robot, you must hand vacuum to waste ... it was taking way too much time. So, I figured I'd let the robot do it anyhow. I swapped in the extra fine pleated filters and sent the robot on its way. And it was doing great! It sucks up the phosphate that fell to the bottom overnight easy peasy. Within two days, some backwashing, the robot running around, sucking up the dropped material on the floor, our pool is looking a ton better and should be back to pristine condition in a couple days. This is not an inexpensive robot, you can buy a lot cheaper, but for our in ground vinyl pool, with a lot of floor and surface area, tons of cleanup in the fall; it is a very solid performer and gets my two thumbs up.

Stay away from this particular model (Dolphin Quantum) - it has a serious issue with stopping/stalling randomly, sometimes in 20-40 min, sometimes right after it starts moving. Read other reviews, there are numerous mentions of this defect. And don't think "It will never happen to me", because when it does, you maybe outside the return window (I was lucky to be able to return it). Here is my full experience though, and some thoughts/advice. Bought a few weeks ago. First cleaning. Started moving, all looked normal. Then it tried to climb the wall and suddenly stopped after ~40 min. I was puzzled. Power button was "On", but robot was sitting dead on the bottom of the pool (its blue light turned off like it was done?). I didn't pay too much attention first time. Turned it off (by pressing power button), then on. Nothing. After several tries, it started moving again. It moved for yet another 20 min, then stopped again. I was running late so I left it alone. Cleaned less than 30% of the pool (that was kind of almost clean to start with). Next time, a few days later. Start cleaning cycle, everything looks normal - it moves, turns, filters water, etc. then 20 min later it stops (again) and turns off its blue light like it finished its cycle. What? That did not look right to me. Power off, then on: moves a few feet, stops/dies again. Rinse and repeat many times - same thing. If I unplugged it completely, waited for a minute or so, then plugged it back, it would run a bit longer (10-20 min), then it would still stop again. I started googling, reading reviews (should have done better job before buying), and here is what I found: 1. User manual does not mention anything like that. 2. Some people were saying there maybe some restriction (clogged impeller, etc.). Mine was *shiny brand new*, but I double checked: every part was clean, and moving - nothing was stuck. OK... 3. Review here on Amazon were mentioning a lot of cases like mine (do your part, read them). 4. One reviewer (engineer) mentioned about a defect he was able to fix by disassembling motor or something (search for it, it's here). That looked totally correct to be as mine experienced identical symptoms. Long story short, I spent 3 hours babysitting it and trying to make it move (with no success). If I cleaned pool manually that evening, I would have been done ~ 3 times already... lol. After all of the above I packed it, and back it went. Like I said, I was lucky it happened right out of the box. Some people were mentioning this would start happening a few month later - and that would have been bad... Imagine paying $1K+ for such a low quality product that cannot even complete its primary function and being stuck with it... Anyway, I turned to completely different model - bought Dolphin Sigma instead. My reasoning was I wanted completely different design of the product. If you look at Quantum, you will find many other models that would look identical or be very similar. I did not want same failing design/part so I tried to get something that looked as much different as it gets. Quantum Sigma. What a difference out of the box. I don't yet have much to say (only used once) but Sigma completed its first cleaning cycle (in 2+ hours), moved *much* faster, navigated the pool much easier (has 3 separate motors), pushed water (during filtering) with *much* stronger force, you name it. So far I am grateful Quantum turned out to be such a piece of junk due to bad manufacturing and/or design, because this made me return it and buy Dolphin Sigma instead, which looks like a much better product (a few hundred dollars more expensive but anyhow). Oh, and one more thing. Advice. Do not buy Dolphin robot universal caddy at the same time with the robot (like I did), because it you happened to have issues with the robot, it would make it difficult to consider another brands. My same brand replacement (Sigma) seemed to have worked fine, but if it did not, the caddy would have been real pain to disassemble and pack before returning. Good luck with whatever robot you decide to choose.

I have had this pool robot for three years. it has been a great pool robot. works great gets the pool very clean. easy to clean, easy to use. The 50 foot cord is plenty to reach my entire 32 by 16 pool. the handle on the front makes it easy to get in and out of the pool. its is a bit heavy when first taking it out of the water, but once the water drains it much lighter. the single screw in connection makes it easy to setup.

My pool has never been cleaner with almost zero effort. Just hose out the filters and put it back in action. A couple of limitations, though: 1. The control box will only let you set the option to clean once, every day, every two days, or every three days for a week. After a week, it just stops working and you'd have to turn it off and turn it back on again to reset it for another week. My plan was to leave it in the pool basically unattended, but now I'll have to have somebody check on it at least once a week. 2. The control box doesn't have an option to set a time schedule. All it knows is to run for three hours beginning from whenever you turned it on. If you want a daily schedule, it is just going to go 24 hours later. 3. Power interruptions will reset everything and start over. Might not be an issue in the US, but here in Central America momentary power outages are common. 4. It doesn't appear to me that it remembers where it has been. Looks completely random to me. I've had it running for a week on a daily schedule and I see areas that haven't been touched yet. 5. Wall climbing is sort of iffy. My pool has a sharp 90 degree angle and somewhat slippery ceramic tile liner. Sometimes the little robot pops right up, and sometimes it just spins its tracks without any traction to start the climb. 6. Doesn't even attempt to clean the concrete entry steps. Senses it as a wall and only cleans the side of the lowest course of steps. But it has done a great job of cleaning years of stuff out of the tile grout lines and has clarified the water trememdously once I changed the filters to the included pleated extra fine ones. Will save me money in the long run as I can reduce the run time of my pool pump. I think there's an upgraded model of this same basic bot with bluetooth or wifi control that would probably address many of the shortcomings I'm seeing. Maybe there is or will be an option to upgrade to the different control box/power supply. EDIT: After several months of constant use, I am still very happy with it. Today out of curiousity I hooked it up to a Kill-A-Watt meter to see how much power it consumed. When it is running, it uses a little less than 100W, call it low 90's. At idle it showed 6W. Total consumption after running a full cleaning cycle was 0.19 kWh. I pay about 22 cents per kWh here, so that means it uses about 4 cents of electricity every day. Way more efficient than vacuuming with the pool pump, and the pool stays much cleaner with no effort. Still wish there was a wifi/bluetooth option to control the timer.

The pool company that opened our pool did a terrible job! They left our pool a complete and utter mess. I had to do something different as the pool cleaner we had was not cutting it. Day 1: The pool was so dirty I couldn’t see even halfway to the bottom and the Quantum was full after 20 minutes. I emptied the basket every 20-30 minutes that day. It was a Pro. I emptied it probably 14-15 times. Day 2: the cleaner was able to go an hour before I had to empty and then eventually up to two. I emptied it like clockwork still. So about 6-7 times this day. Day 3: it was able to run full cycles before it was full, which is 3 hours. Day 4: our pool is actually clean, mostly, and I can see the bottom. Pros: efficient, cleaned my mess of a pool in three days. Cleaned large debris and sandy debris/sludge stuff. The negatives: we have a ledge around the pool that I still need to broom off. It seems to skip this and go straight up the wall. Also, it will not clean our tanning ledge/steps. That is ok for me as it is easy to broom off towards the filters. Also, I noticed that it will go right over a leaf and not pull it in. Not sure if because it was getting super full in the beginning? But the leaves were eventually cleaned up. Also, we have a sitting pool that a waterfall fills. It gets extremely sandy and full of debris/rocks. I ran the Quantum for three days, emptied twice each day. It did a decent job and cleaned almost everything. It has trouble grabbing the stuff in the cracks. I will run it another time still. I will post pictures of this as well. This machine really saved our pool. The company left us high and dry and the machine has made it so we can swim! I will see how this is working at the end of the summer, or if I have any problems in between times, I will update. Update: At the end of Summer #1 This was ran after each swim which is basically every day. We did take a vacation that I had scheduled the cleaning and it did great. We finished the whole summer without any issues. I did find that I use the fine filters more frequently than the screens. It remained easy to clean.

This is my second dolphin pool vac in 4 years. The first was the Dolphin s200 and now the quantum. All of them work great and do exactly what is promised. And I have yet to find better for my needs which involves picking up efficiently large mango tree leaves. However, both products are poor products since neither lasted the 2 year warranty and had to be sent back for repair to Maytronics. The repair process seems to be a quick turnaround and relatively easy though a pain. The catch is that Maytronics makes you pay for the shipping to return it to them - a costly last month of $175 via UPS. I stuck with Maytronics after the first one thinking it was a fluke, but 2 in a row having to return for repairs only using it 4 hours a week and storing it in the house does not in my mind hold up the great reviews. At a cost of about $500 a year for the 2 year warranty the product is better than the cost of a pool service and my time, but NOT a long term reliable product in my opinion.

Summary: - randomly stops running, sometimes only a few minutes after starting. 11 months of use and only runs for less than one minute. It is now basically completely useless - line twists and keeps vacuum from going all around the pool - scrubbing mechanism is not good enough to not have to scrub manually - When the line isn't tangled and the vacuum decides to run for more than an hour, it did do a good job cleaning leaves. But those two things happening at the same time was rare. The biggest problem is that the dang thing turns off early very frequently. I started noticing it a few months after I bought it, but didn't think anything of it. I thought it might have a shutoff after it senses it cleaned the whole pool. It kept on getting worse, until now it will only be on for less than a minute. So it is essentially a piece of garbage, very expensive garbage. I have reached out to customer service and am waiting for a response. Hopefully the customer service can fix it for free, I would really love to just get my money back, but I doubt that is going to happen. Even if they do fix it, it is still quite an inconvenience that you would expect from a much cheaper product. The 'anti-tangle technology' is a fabrication. From day one the hose has been tangling. My whole pool can basically never get cleaned because the line twists and the vacuum doesn't have enough strength to pull it out. I read online that you can stretch it out and leave it in the sun and it will lose the twist. I did that, and it worked for one day before it was twisted again. So I guess I'd have to do that every single day for it to clean better. At this point, just using a traditional pool cleaner that plugs into the wall sound about 1000 times easier. The scrubbing kind of works. It isn't a substitute for you doing it yourself though, which was a major disappointment. You have to scrub less frequently, but make no mistake, you'll have to be out there scrubbing at some point, for sure. I would 100% recommend not getting this. A poolside cleaner for half the price you make you twice as happy. I'm living with a lot of regret right now.

***Review Update 4-25-25 My newest update is as follows. It's been only cleaning for 2 hours and sometimes 2 hours and 10 minutes, then it just stops out there, where it is advertised that it cleans for 3 hours. Still no luck also with the control box. I can only get it to turn on each time period. None of the programming, nor other buttons work. All I can do is just turn it off or on. It has been very disappointing. However, I love, love, love the ultra fine filters and they do such a great job of picking up the algae. But, what good is it if none of the other features on the controller aren't working? The other issue now after noticing it today, is why is it all scratched up from only using it for 17 days?? I will say it has been very tiring taking it out of the water twice a day for cleaning. It is very, very heavy and it is a lot of work to get it thoroughly cleaned and where the basket and filters are completely taken apart twice a day for cleaning. I spend on average 2 hours a day cleaning all the parts, baskets etc. Please understand if you are an older person, how heavy this item is and because I am a detailed type of person, like it spotless before it goes back in the water. I am preparing to send it back and still like the dolphin products because of their ingenious design of their ultra fine filters and basket. Looking to get a Sigma or something better, as long as it has the ultra fine filters. Those filters pick up the tiniest thing that falls into the water. Just amazing. Delivered 4-8-25, lots of issues right now with this quantum. I took a huge gamble buying this because it is just so expensive and for that kind of money, expected a decent amount of service out of it. Thank goodness there is a 30 day return window. Trying right now to keep giving it chances before I have to pack it up because that is just something I dread, returning stuff. But because it is so expensive, will not let this go outside the return window. 1. I was originally so excited when I opened the box and started assembling the machine. Just a few pieces of paper in English. Nowhere was there any written instruction whatsoever for inserting the ultra fine filters to the basket. They only show you how to clean the filters, but leave the part out on inserting them, how can you clean them if you can't figure out how to insert them?? I spent 2 hours trying to figure this out, gave up and came here to Amazon and still no instructions. Finally after searching endlessly on the internet, found someone showing a video with no sound of putting the ultra fine filters into this basket. At first I still didn't get it because there was no sound, but I forced myself to not give up and finally figured it out in swapping the filters that came already inside the basket with the ultra fine filters. I consider myself now an expert on inserting and removing the filters. I may even do my own step by step video, so others don't go thru what I went thru. Mine will have step by step sound to it. Cleaning it is a breeze. Those ultra fine filter pleats are amazing at grabbing the stubborn algae. I am very grateful for them designing a system with this type of filters that picks up algae. 2. Like others have said, you turn it on and maybe after 10 minutes or even sometimes 20minutes, it just sits out there not moving. I've only had this machine as of today one week. It has a great giddy up and go when it starts up but then just fizzles out and what a hassle to drag it out of the water for inspection when it shuts down like that. Propeller gets dissected and cleaned each time, everything gets hosed down, the tracks get checked and trying so hard to give this machine a chance. 3. Something is wrong with my control box. After I troubleshoot it and have tried another electrical outlet with another GFC still has the same issue. The lights are supposed to light up for a full clean or even a 1 hour clean and no lights. Also, when this machine stops working and just sits out there in the water, the controller will still show the light all lit up and after it cleans for 3 hours, the light is supposed to shut off. I have unplugged this thing so many times, and pulled the long blue cord out testing the connection to the controller, and still the same issue over and over. Remember only one week into this machine. I will give it a couple more weeks of trying it out only because as mentioned detest returning things. Someone mentioned on here that the Maytronics Dolphin Sigma is great but understand it is very expensive, but if it works and has less problems then this one, willing to upgrade to that one. I will come back here in a couple weeks and update this review again. Sure was hoping this was going to be a gem but, really disappointed right now on how it has been so far after one week.

Como pueden ver el producto no filtra absolutamente nada, la canastilla de particulas pequeñas es un chiste y al tratar de contactar al vendedor solo te dice que no dan asesoria a otros paises aunque si tienen expertos que podrían hacerte una video llamada al parecer es demasiado paara ellos, les hemos enviado las fotos para más información pero no han dado ninguna respuesta a un producto muy caro. Y además dolphin no se hace cargo de nada por ser una compra internacional.. Comparto mi reseña después de un año, sigue sin revoger residuos, hemos hecho investigación de todo y si talla las paredes pero te deja el agua muy turbia aunque utilices el nanofiltro. Al finjal no recolecta particulas finas y solo hace un trabajo de tallado algo caro y si consideras que en México no hay garantía pues es preocupante porque gastas mucho por un producto que si no regresas en 90 días no hay forma de devolver o reparar. En el último video se aprecia como en un espacio pequeño el agua está cristalina y después de 13 minutos queda totalmente turbia, mientras que al otro lado en el area de picina más grande sigue cristalina y se aprecian los residuos en el fondo, así que no no atrapa las particulas finas ni la arena.

very easy to use, unbelievable ability at climbing the sides of the pool. After years of cleaning the pool manually, I now wish I had invested in a dolphin years ago. Highly recommend it!

Tiene buen funcionamiento pero tarda mucho en limpiar la alberca. No se tarda el tiempo que mencionan en la descripción, tarda más

Actually thought it is very poor. It arrived in the UK without a suitable UK transformer. it worked ok for 6 months but failed to pick up leaves. After one year we would find it regularly on its back, having shut down. There is no after care in the UK. I can find no details of a warranty. Dont touch it!

This item is unusable out of the box. No power flows to the supply box. There seems to be nowhere to contact the seller.