Easy to remove and clean filters
Thoroughly cleans pool
Has handy storage caddy
Less effective on curved surfaces
Reviewer Photos & Videos
You can't beat a Maytronics Dolphin M400 robot to clean your pool
We recently purchased the Maytronics Dolphin M400 with trolley for our pool. Easy to place into the pool, turn it on, let the robot do its thing, lift out of the pool, clean the filters and tuck it away until needed again. One of the best inventions EVER!
Purchased in November 2021 at Billabong Pool Service for $2,400.00.
Excellent product M400
Purchased about 4 years ago and has never let us down. We had a an issue with our Dolphin initially cleaning the entire pool always cleaning the deep end. By adjusting the handle angle until we found the right location to suit our pool and it cleans the entire pool including walls every time.
Noticed a big saving in water not having to backwash as much compared to our previous cleaner that worked on the suction from the skimmer box.
Good quality machine and great design. Filters simplistic but effective design are easily accessed and easy to clean. Caddy makes it easy to pack up and put away after each use.
We love it as it makes owning a pool so easy.
Purchased in March 2018 at Poolside All Seasons Pools Mackay.
No information about handle positions
Overall love the M400, does a great job. I’m not sure what position I need to have the handle to do the walls. I have a 60000 litre fibreglass poll
Purchased in January 2019.
A good pool cleaner for custom pebblecrete pool.
I've had the M400 for over 1 year & it has performed adequately for our custom kidney shaped pebblecrete pool. The M400 can usually clean the pool within 1 session, unless we've had a storm and there is more debris present requiring an additional cleaning session.
The unit is easy to clean & the filters can easily be removed for cleaning.
The only complaint is the fine filter panels are easily broken, particularly the lower lugs that connect into the frames when too much debris is captured. They seem inadequate for the pressure of material a...
Purchased in June 2019 for $2,000.00.
This cleaner never worked well
Unfortunately this cleaner has been a frustrating experience. It never cleaned all the pool and spent most of it's time in the deep end. The cartridge type leaf catchers have a small capacity and they kept bursting open inside the unit. The impeller would frequently get clogged. It was too heavy to easily take out of the pool. Numerous parts failed: the brushes, the cable, the cartridges, the s clips holding the cartridges closed, the power supply switches and now it has stopped working completely. The parts are so expensive it is not worth rebuilding it. I thought I was buying a top of the line cleaner but it has been disappointing.
Purchased for $1,800.00.
This is a great product and worth the money. Perfect for a fully tiled pool. Highly recommend https://www.pooltronics.com.au/ to purchase any Dolphin product as they really spent time to help select the best product for our pool and even did a person delivery and demo to talk through how to use it.
Purchased in January 2020.
This is the second season that we've had this cleaner. It does a really good job, but the wonder brushes are worn out already.
I was shocked to find out that it costs over $100 a pair...and you need two sets..!
That's a lot of money in maintenance costs..
Purchased in April 2018.
Very good, but disappointing user manual
EDIT, please read all the way through for an updated happy ending.
I originally bought a Zodiac CX35 online and was so excited to use it for the first time. Found I was happy enough until it broke within 7 days.. got an error code and it refused to move. Sent it back for a refund.
This time around I wanted to do a little more research before buying something and all roads pointed toward the Dolphin because it was tough, dependable, had finer filters and was nav intelligent apparently. First thing I noted was that it has two filter canisters n...ot just one! Where no one ever actually mentioned online whatsoever so that was a complete surprise. Also has two types of changeable filters, one I'm guessing 100 micron and a finer type. Very cool. The Zodiac only had a 200 micron (or pay an additional $80 for 100 micron) where silt would blow through back into suspension clouding up the pool. The other thing I noticed was the Zodiac impeller was actually right in the middle of the filter basket, suspect to damage ... whereas the Dolphins is independent and won't be damaged by debris spinning through filtration. (Dolphin impeller after all filtration has been completed, Zodiac right in the centre of the filters) It's definitely built tougher, which is good and seems to do a decent job of navigating the pool. I do notice it climbs the walls in the same three or four spots and can't quite make it up the steeper starting corner slopes where none of the rollers or tracks make forward contact but no robotic cleaners would. (fwiw I have a fibreglass pool and bought the WB model with foam rollers). It doesn't seem to get to the waterline much after the first few minutes, as soon as there's a little bit of matter inside the filters it stops climbing and slips as it tries to climb up before reversing back down with even the 100 micron filter installed, and I mean miniscule amount of debris in the filters (I thoroughly clean these each time), it just seems to become too heavy but so did the Zodiac as well, maybe all robotics do this? I've tried adjusting the float positions but it hasn't seemed to make a difference at all. Is it possible because my fibreglass pool is sprayed blue the shop should have sold me the CB model? In the manual it states: WB for tile and ceramics, online states also fibreglass so who knows It does pick up everything, but only if I sweep the silt down to bottom off the higher ledges. It does knock some down on it's descent if it can climb the particular area which I can tell was cleverly and purposely designed. It leaves a few small piles of silt on some of the curves/corners and stairs where my pool is strange and street shaped but I can live with that, no robot would be able to get that, it's only very small amounts.
Purchased in September 2020 for $2,200.00.
Great cleaner with easy to empty filters!
I have a large 80,000 litre Pebble Crete pool and it cleans it perfectly every time. I put it in once every week or two as required. The cartridge type filters are easy to remove and clean.
Purchased in August 2020.
Makes the resort lifestyle easy!
What a great cleaning unit the Dolphin M400 is! Easy to use, easy to maintain and it has its own trolley to relax in when it’s not hard at work cleaning the pool.
Gets right up to the waterline and steps.
Purchased in August 2020 at Placid Pools Smithfield.
Seems like a winner
Early days but very impressed so far. Picks up much more than our previous suction cleaner. Seems very easy to operate and emptying the waste compartments is an absolute breeze
Purchased in June 2020.
Amazing Product M400
I purchased my Matronics M400 yesterday from Brisbane Pool.
My previous M400 had died after 7 years of solid service without ever having one fault. My new M400 is perfect and does such a wonderful job keeping my pool sparkling clean. I have lots of trees and leaves, but this model is absolutely perfect and does a wonderful job cleaning floor, walls and waterline. Its a really good quality build and I would recommend anyone to buy this model.
Purchased in May 2020 at Brisbane Pool Robotics.
The Maytronics M400 is very good at cleaning large and small debris equally. It also does a good job at picking up the fine dust from the bottom of the pool. I am happy with the product.
Purchased in January 2020 at Billabong Caloundra for $2,199.00.
Great cleaner that reduced cleaning needs
Easy to use, simple to clean filters, just plug in and it does the job, in addition cleans the walls as well, removes fine debris from floor and walls. Good warranty as well
Purchased in April 2020 at Pool and Spa Direct.
So east to use!
We love our new M400 pool cleaner. It is so easy to use and does a great job cleaning the floor and walls of our pool! Love the storage caddy too.
Questions & Answers
My Dolphin M400 doesn't go up the Wall, I have the Handle diagonally positioned as per the Pool shop advice. I brought it back to the Pool shop and they tested it and they said it's working as long you have the Handle diagonally set. it went up the Wall only once in 2.5 Hr, that's all. My Pool is Pebblecrete.
Can you help Please.
Hello Alfie. Thank you for reaching out.
Wall climbing models of Dolphin, inclusive of the M400, are programmed to climb to the waterline every four minutes. if your Dolphin is experiencing difficulty climbing, the following is recommended:
- Thoroughly rinsed the filters under a tap or, soak in cartridge cleaner or a mild dishwashing detergent and warm water solution to assist in the removal of in-grained debris.
- If the unit is attempting to climb, brush down the walls and/or slope down manually to loosen any build up. The Dolphin should then be able to grip these surfaces and maintain them on its own going forward.
-Water chemistry levels and pH levels that are out of recommended range can prohibit the unit from climbing to the waterline. This is due to the surface becoming slippery and the robot is then unable to gain grip/traction. A full water test and the pool balanced is recommended. Following this, brush down of the surfaces to shift any slipperiness.
Please do not hesitate to contact our Customer Care team on 1300 693 657 option 2 for any further information.
Hi recently purchased a M400, can someone confirm the M400 can be set to clean the floor or walls only
I’m using the my dolphin plus app and can’t see any options to switch programs to floor only
Hello Shane. Thank you for reaching out. To change the cleaning mode of your Dolphin, this is located within the My Dolphin Plus application under mode or cleaning mode.
Yes tried that the actual app doesn’t have options just 2.5 cleaning cycle
If you have a direct email I’ll send some screen shots but your app has been updated and since then we have no options to clean floor only
Hello Shane. Please send any screenshots and also the serial number of your Dolphin to our team at email@example.com
Hi i have a new m400 wb, thru the app can you tell robot to concentrate on the walls cheers steve
Hello Steve. Thank you for reaching out.
Within the My Dolphin Plus application there are are options to set the Dolphin to Regular Mode, Floor Only and Ultra Clean cleaning modes. These modes do not have the option to solely focus on the walls however, if the walls are manually brushed down, the Dolphin should collect anything on the pool floor.
Get an answer from our members and Maytronics representatives
- The Maytronics Dolphin M400 is a robotic pool cleaner that is designed to deliver a deep clean.
- It has 3 brushes and super scrubbing power to pick up fine debris.
- The pool cleaner is able to be programmed, so you can schedule weekly cleanings and spot clean at the push of a few buttons through the MyDolphin Plus App.
- A tangle-free swivel allows the cleaner to move freely around the pool, making for a precise clean.
- This product has a 36-month limited warranty.
Points of praise:
- Most reviewers found that the cleaner’s filters were easy to remove and clean.
- They also found that it thoroughly cleaned their pool, and was able to pick up fine dust and debris that other cleaners could not.
- Reviewers also appreciated the storage caddy for the cleaner, saying that it was handy to keep the cleaner tucked away when it wasn’t in use.
A point of pain:
- Some reviewers found that the pool cleaner didn’t perform as effectively on curved surfaces - some people with kidney-shaped pools noted that it didn’t cover and clean the whole surface area of their pool.
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