Dolphin Nautilus CC Plus Wi-Fi Automatic Robotic Pool Vacuum Cleaner, Always Cleaning, Never Charging, with Wall Climbing Scrubber Brush, Ideal for In-Ground Pools up to 40 FT in Length

My package arrived at 6:54 PM . The robotic cleaner was unpackaged and operating within 10 minutes by 9:30 PM. My pool was. If you’re looking for a pool cleaner that actually works with no false claims by the manufacture. This is it this unit is made in Israel and is well-made well designed with two filter baskets that are easily removed, cleaned and placed back into the unit after trying three other models from three different manufacturers I am so happy to come up on this one. I have the cord unit that can clean continuously after programmed using the app. I haven’t use that feature yet but I’m looking forward to. I’m just excited to see the robot actually clean back-and-forth back-and-forth or there’s absolutely no debris on the bottom of my 50 foot pool.

The Dolphin pool cleaner is the real deal!We used to have the Polaris 360, and it was such a pain to deal with—I wish we had gotten the Dolphin from the start! It leaves our 20x40 pool absolutely spotless and is so easy to use. I can now maintain the pool myself with no more manual vacuuming. The amount of sand it picked up was unbelievable—our old cleaner never truly got the job done. This vacuum is amazing, and I hope it lasts a long time. We’ve had it for almost 3 months now and couldn’t be happier! I love the caddy too! It’s worth the extra!

Yet another update: The second power supply has now failed. The first symptoms of the failure were that it had apparently "lost" its configuration and had to be re-adopted/re-connected to my WiFi network, the same as if it were a brand new unit. It lasted for 1 cleaning. The next time I tried to use it, it was in the same state only that time, despite attempting to re-connect it a half dozen or more times, it would not successfully connect to my Wifi network. Mind you, the power supply itself when in use sits less that 30 feet away, line of sight, from an outdoor Ubiquiti Unifi Pro access point that's also supporting multiple WiFi cameras that are several hundred feet away and are all working fine, so it's not a WiFi signal problem. Maytronics continues to pretend that they're not aware of chronic wide-spread problems with these power supplies.Revising this review again. I now truly regret this purchase and wish I have never seen this thing.Here's the latest:It's about a year old at this point, still in warranty. So far we've had one power supply go bad. It took a long time to get a replacement because they were out of stock. I assume because so many of them fail. I just dropped off the whole system at UPS to ship for more warranty work. Now we get nothing but error messages saying that the controller can't communicate with the robot. After talking with support they decided I needed to send the whole thing in (at my considerable expense) to the repair center in Georgia, still under warranty. Here's the telling part: As soon as I walked into the UPS store with that huge box, the counter person said, "That's a pool robot, isn't it?". Says I, "Yes, how did you know?" Counter person, "Because we get a LOT of those." All Maytronics? "Yep". Don't get me wrong, when it works it works really well, but with two big problems still under warranty and the initial cost, I tell you that dumb, simple pressure side Polaris we got with the pool is looking hard to beat.Further update: Checking the UPS tracking told me it arrived at their facility 7 days ago, yet I've heard nothing so I contacted them for a status. Here is what I was told:"• I see that your unit was delivered on 9/25/24. The unit has not been received in the system yet. Receiving is one week behind due to a surge of units coming in needing repairs. The turnaround time is 2-3 weeks after being received in the system. We appreciate your patience during this time. Once repairs are completed the unit is shipped back to you and a tracking email is sent. They also send an email letting you know when the unit is received in the system."So their receiving is at least a week behind, and service is at least 2-3 weeks behind. Why? Because of the number of units that have had problems severe enough to require them to be sent in for service. To quote a friend of mine: " It's h*ll when it's well, but it's sick ALL the time!"Original revision:After having lived with it for about a year now, I'm revising my review.Performance-wise, it works very well and I'm happy with the job it does.HOWEVER:Slightly less than 12 months in, the power supply has completely failed and will not power up at all. Contacting customer support, they agreed to ship me a new power supply with almost no questions asked. In fact it was SO easy that now I'm thinking that Maytronics must already be aware that their power supplies are plagued with frequent failures, especially considering some verbiage I found on their web site about the process for dealing with power supply problems.Also, although the robot itself can be operated without an internet connection or with their app on a smart phone, most of the features are not available without one or both of these. For instance, you can't set up a cleaning schedule, you can't alter the type or the duration of the cleaning cycle, you can't manually "drive" the robot around, and you can't get feedback about the condition of the filters. Their default mode of operation requires an active internet and wifi connection as well as a connection to the Maytronics servers. It's possible to switch the robot to communicate with the phone app over bluetooth, but that option is somewhat hidden in the menus and even in that mode, it's not clear whether or not the system still communicates back to Maytronics. (I could find that out via a Wireshark trace but so far, I haven't cared enough to do that.)I'm still happy with how well it cleans, but the "other stuff" above is now more of a concern to me personally.Original review:We have a large-ish 40,000+ gallon poolLikes:Does a thorough job.Filters relatively easy to clean.Being attached to a cable as opposed to wireless may seem like a con, but it means the suction motors can be stronger and more powerful than they could be if it were 100% wireless which means it does a good job.Climbs/cleans walls and cleans the waterline very well.Dislikes:The Android app used to control it does not have an 'exit' function. You can dismiss the app by using the 'home' button on your phone but the app will continue to run in the background which means it's still consuming memory and battery (and possibly sending who knows what information back to the Maytronics servers). To completely exit the app and stop it, one has to use the phones "force stop" function. (This is probably true of all Dolphin robot cleaners). When I reported this behavior to tech support, they seemed unconcerned and not willing to fix it so now that I know, I always just force stop the app when I'm done.

We bought a house with a 16' x 36' pool in 2013. This was a new experience for us, and we tried to become pool people... water analysis, filter operation, chemical addition, etc. The thing I hated the most was the chore of pulling out the big coil of hose and setting up the vacuum head on the 16' pole and then spending an hour plus TRYING to vacuum the pool. The 8' deep end was the worst.... All of this to no avail, as every season we ended up with yellow algae problems, frustrated with our efforts, and put off by the appearance of our water. I was beginning to try to calculate how many dump truck loads of dirt it would take to fill the pool in!! I began to get interested in a pool cleaning robot every time we went in to buy even more chemicals to fix our current pool problem, and finally I decided to take the plunge and buy a robot. This was to be my last effort to make our pool work. We ordered the Nautilus Plus by Dolphin/Maytronics, in March and when it arrived I was not sure this was the way to go. The Dolphin set in our house for a few more weeks until we opened our pool (after all the "helicopter" things were through falling from the Maple trees...) Finally, the day of our pool opening arrived... and we gently placed our Dolphin in the pool, and pushed the start button on the control box....At this point we should cue the music and have a bright spot-light shine on the Dolphin!!! This little monster took off with a vengeance! I was immediately impressed with the amount of water it was moving, and the pristine clear trail it left as it made it's way across the bottom of our pool to the deep end! Maybe 2 to 2 and a half hours later we took it out of our now clean pool, somewhat stunned by it's initial performance! Every one in my family was in awe of it's performance, and we realized that we had, perhaps, turned a corner in our battle to have a clean and inviting pool!Three months in, June 2016, and the Dolphin continues to do an excellent job, and our pool water looks like liquid glass! The Dolphin has become an important part of our pool maintenance regimen, and we use it normally about twice a week to clean the pool. I stress that this is a part of our overall effort to keep out pool in the best shape possible. We still do water analysis and add chemicals... but no where near the same amount as before our Dolphin! We back wash our filter once a week now, so we are saving lots of water, AND most important to me, I no longer have to break my back and take my time to manually vacuum the pool, just let the Dolphin do that thing it does sooooo very well!!!Let me address some of the negative things I have read in the reviews of this pool cleaner...Warranty problems: We have had NO problems with our Dolphin. Right out of the box it has worked like a champion, so I have no comments on the help, support and warranty problems others have posted.Instructions: Yes, the 'bot comes with very little in the way of operation instructions. There is really only one sheet of instructions with drawings on it, that tell how to use the Dolphin... but, if you have even a basic understanding of mechanical things, you should have no problems in making the Dolphin work. Every thing snaps together with ease. Pay attention to how it comes apart and then reverse the process after you clean it... nooooo problems! I guess that Maytronics could do a much better job with the instructions- better drawings and expanded written directions, but I can say I honestly have not had any problems understanding how this critter works. It is very straight forward in construction and operation.Filters: Our Dolphin came with 2 sets of filter cartridges. They are made out of some very sturdy plastic type material and require only a good rinse with the hose to clean. We used the "coarse" set of filters the first time we cleaned the pool, to help get out a few leaves, but from then on, we used the "fine" filter cartridges with great success. We ALWAYS take the time to disassemble the filter cartridges after each use and clean them. We then hose out the inside of the Dolphin to complete the process. Like all things electro-mechanical, normal maintenance and cleaning determine the life of the machine. The filter cartridges are held on the filter frames with 2 rotating snap clips. I think that these could be problematic in the future, but look like they would be easily replaced with a screwdriver if replacement is ever required.Steps and Walls: Yep, try as hard as it might, the little Dolphin is just too big to clean our steps. We just use a brush on an 8' pole to sweep any debris on the steps into the bottom of the pool prior to starting the Dolphin... problem solved. I can gladly spend the minute to sweep the steps vs. the hours plus of time to manually vacuum the pool any day! Our Dolphin climbs right up the walls and runs partially out of the water to clean the pool walls.... it's like it's maaaagic! LOL!Carrier: Our Dolphin Nautilus Plus did not come with a carrier. It does have a very sturdy built in handle that makes carrying it, and getting it out of the pool pretty easy. If you have health problems or back problems, etc. this could be a concern, but we have had no problems here. Also, I have never seen any debris fall out of the unit as I remove it from the pool.That's about all I can think of for right now. Maybe at the end of this pool season, I will follow up with my first season Dolphin results.... stay tuned!I hope this is of help to all thinking about buying a Dolphin. I think this is one of the best purchases I have made in years!!!! We now no longer say we are going to clean the pool with the Dolphin... we now say that we are "RELEASING THE KRACKEN!!!!" LOL! Thank you Maytronics, for allowing me to now enjoy my pool, not just spend hours and $$$ trying to keep it clean!