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🏊♂️ Dive into effortless pool perfection with Hydro 4 – your smart, cordless cleaning companion!
The Chasing Hydro 4 is a cutting-edge cordless robotic pool vacuum designed for inground pools, featuring a powerful 5070 GPH dual turbine suction system, a 210-minute battery runtime with quick 4-hour charging, and smart app control for remote operation. It offers over 95% pool coverage with multi-mode cleaning options and a large 4.1L dual-chamber filter basket, ensuring thorough removal of debris from floors, walls, and waterlines. Lightweight and easy to handle, it comes with a 3-year warranty and US-based support, making it the ultimate pool cleaning solution for busy professionals.







| ASIN | B0DDSYRZVY |
| Battery Description | Lithium-Ion |
| Battery Weight | 1432 Grams |
| Best Sellers Rank | #44,889 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #82 in Robotic Pool Cleaners |
| Brand | Chasing |
| Brand Name | Chasing |
| Capacity | 4.1 Liters |
| Charging Time | 4 Hours |
| Color | Dark Grey |
| Control Method | App |
| Customer Reviews | 3.8 out of 5 stars 147 Reviews |
| Efficiency | High efficiency |
| Hose Length | 3 Meters |
| Installation Type | robotic |
| Item Dimensions L x W x H | 15.94"L x 9.96"W x 15.67"H |
| Item Weight | 14.3 Pounds |
| Lithium Battery Energy Content | 14400 Watt Hours |
| Lithium Battery Voltage | 21.6 Volts (DC) |
| Load Capacity | 9 Pounds |
| Manufacturer | Chasing |
| Manufacturer Part Number | 40.40.300.0003 |
| Material | Plastic |
| Material Type | Plastic |
| Model Name | Hydro4 |
| Model Number | 40.40.300.0003 |
| Model Year | 2026 |
| Number of Batteries | 1 Lithium Ion batteries required. |
| Number of Lithium-ion Cells | 1 |
| Other Special Features of the Product | 14400 mAh capacity, Floating Battery with a 10-foot Cable, 3. |
| Power Source | Battery Powered |
| Product Dimensions | 15.94"L x 9.96"W x 15.67"H |
| Required Assembly | No |
| Voltage | 25.2 Volts (DC) |
| Warranty Type | 3-Year Warranty |
G**Y
Worth the price
The Poolmate Hydro 4 does a great job cleaning the pool floor, walls, and waterline, and the suction power is impressive. The app is easy to use, and setup only took a few minutes. The only downside is that the cord can sometimes get tangled, but overall it is worth the price. It cleans the bottom and walls well, but it does not float on the surface to pick up leaves. Large leaves and debris on top of the water still need to be removed manually or with a skimmer. If you mainly need something for surface leaves, this may not be the best choice.
S**U
Climbs walls in floor only mode
This order arrived to my house on Monday, June 23. I unpacked it and installed it into the waterproof electrical box I used for my previous cleaner in pretty short order. Downloaded the app, and configured the Wi-Fi and Bluetooth with no issues as other people have previously mentioned; I guess they are just idiots. It took me 10 minutes, tops. This included a firmware upgrade. Everything worked as it’s supposed to. My pool is 20 x 40 with an 8 foot deep end. Two jets, two ladders, two sets of steps in the shallow corners. my biggest issue with the pool is tree debris from neighboring trees. Bark, twigs, leaves. After it sits in the pool, it decomposes and breaks down and turns into fine particulate matter. I played around with the manual setting on the floor for a while. Very cool to be able to go exactly where you want to go and get large piles of debris, dirt, leaves, pool, funk. I then created a custom setting. My parameters were floor only, S-shaped pattern, four hours. This video shows that it loves to hit the walls. In spite of the fact I selected floor only. The walls on my pool stay fairly clean. If this thing would stick to the program, it would probably do a pretty good job. However, if this first run is any indicator, I’m going to be returning this unit to Amazon in very short order. In the five minutes, it took for me to draft this review, it has climbed the walls and additional five times. In fact, I dare say it has spent more time on the walls than on the floor, even though it is supposedly on floor only mode. I will give it a few more days and see if it possibly needs to map my pool in order to perform better. If not, thank goodness it’s on prime, and I will just send it back and try another unit. If the situation improves, I will update my review and my stars. June 24 update: So, I will say it did a superb job of cleaning. I had a very heavy amount of debris since my old cleaner has been dead a month. It does not follow an S-pattern even when using one of the canned floor only formats. It just randomly scoots along, covering a solid 95% of my total floor space. I got the remaining 5% with the manual setting. It did not scrub the walls with this format either. As it approached the vertical surface, it would stop, pivot, and proceed. I think this is where the lack of S-pattern comes in. It does not do a precise 180 degree turn every time, causing it to go off in angles all over the place. My initial review was a 3, I will bump it up to 4, with considerations to a 5. I was skeptical with its initial performance out of the box. I have a large pool and would like the ability to manually program it to do what I want, as advertised. As long as it is durable and maintains this level of cleaning performance, I might forego the advertised features and give it 5 stars. July 17 update. Unit has lost connection and says it is not in the water. Neither is the case. I still have a 6 day window to send it back to Amazon for a full refund, so off it goes. Shame because it has potential. Cleaned well but programming bugs could not be overcome.
M**T
you can drive your vacuum under water
I was on the fence when ordering this I had bought two of them. One started have some issues. through amazon I was able to get ahold of the company and WOW their customer service beyond helpful. They ship me a new one right away and sent me a return label to send the old one back. I was dreading a long hope i give up back and forth emails. Nope I think a total of 4 emails and a new one was ship express. Blew me away. If you are on the fence about any of their products, jump off that fence a go with this company I highly recommend they stand behind their products and give more than any other company I've dealt with. Pricing and customer service 10 star by me. Get one yourself and see. they have a lot of features like remote control. Yeah you can drive you vacuum in the pool. you wont be disappointed.
M**W
works perfectly!
This robotic pool cleaner does an excellent job keeping the pool spotless. Even though it’s a corded version, it’s very easy to use and the cable doesn’t get in the way. It has strong suction and picks up dirt, leaves, and debris efficiently. Setup was quick, and it runs smoothly without any issues. I also appreciate how reliable and consistent it is compared to some wireless models. Overall, a great value and highly effective—definitely recommend!
E**N
Hydro 4 corded - My findings and comments 5-5-26
Initial findings - just unboxed and got it running... 1. Positive - fairly lightweight 2. Positive - nicely packaged with foam holding parts and plastic wrap holding coils. 3.Negative - the manual you download from the website and the QR code to download the program is in that download... for my phone I needed to send the link to someone else so I could scan it from their phone into mine. 4. Positive - the program was fairly easy to connect and use but I had to agree to AI and I am not seeing what benefit that may have been, maybe later? 5. Positive - clean basket, nice suction 6. Negative - it appears that to turn around it has to jog forward then backwards then forwards, etc a number of times... I think that all the treads and scrubbers are run by one motor and one of the rear foam pieces is larger so it rotates the unit to turn - maybe not a negative as one less motor to fail? 7. Positive - it cleans the wall well as it climbs and looks to do a nice job on them 8. Random Comments in no particular order - there appears to be no logic for a cleaning pattern but after a while it gets it clean - the cable does not have a swivel so you will need to untwist it every so often - there are lights on the front of the unit that can do some interesting patters - No clear way to register the device online (although they do provide a card where you can write the info that the app gives you for the model and serial number. If this thing lasts a while it may be worth the price... I will update as things happen. If I dont add anything then its probably ok...
S**S
Corded vacuum is a blessing and a curse at the same time!
Received this vacuum the other day and was very excited to use it as I’ve never had a corded pool vacuum before. First impression, the vacuum looks and feels well made. I downloaded the app, plugged it in and placed it I’m my pool. It was nice not to have to wait for battery to charge. It’s a little slow, but seemed to work well. Climbed the walls of my above ground pool and scrubbed the waterline. Doesn’t really have any sort of pattern, it just kinda goes wherever. It also seemed to focus on the outer section of my pool and not much in the center. The problem I had the most was the vacuum going under my open pool steps and the cord getting wrapped around the steps. The second time I used it, it would not climb the walls, even in wall only mode. I love the fact that you can have it going full power all day, but I have to sit and watch it in case it goes under the steps and gets tangled and that isn’t very convenient. This vacuum would probably work ok if you have steps that the vacuum can’t fit behind. For this reason I will be returning this vacuum and look for an another option.
L**I
Very happy with robot/ cable needs work, but overall I’m happy
I decided to give 5 star even though I had problem with the cable. Why? Cause I was able to find somewhat solution to that where you stretch the cable a bit and keep it on the sun so the cable will build memory and stay straight for few days. It’s not ideal but it’s better than with no cable where you have to take it out every day and charge it. However I liked that the seller was very responsive and worked with me on the issue. Therefore I don’t mind fixing cable every few days and I’m happy with the product it’s self. Cleans very well and even very small particles which my previous robot didn’t. The only improvement I would add if they would offer warranty to “purchase” for like 5 years so I don’t have to worry about going bad in few years.
D**M
Reliability and warranty not worth it
I would not recommend this product to anyone because of reliability and the ability to purchase replacement parts. First my hydro 4 lasted 1 year, went to use it for the second season and one of the suction motors wouldn’t work. It was easy to take apart and figure out what was wrong however support hasn’t responded and it’s impossible to find a site to purchase a replacement motor even though it should be covered under warranty. I highly recommend to not waste your money. If you want something easy buy a stick vacuum, no hoses makes it very easy the clean the pool. Picture is the broken motor.
S**Y
Design failure
Unfortunately the cable kept getting tangled in the brushes in a weird way! The brushes would have eventually been damaged from it.
P**M
Cumple la finalidad
Muy buena calidad, tira un poquito de tierra al sacarlo pero he ahorrado mucho en limpieza esto junto con el poolsavers mantienen mi alberca limpia
A**O
Falla rapido y no es facil conseguir repuestos.
Funciona bien pero se descompuso muy rapido uno de los motores, solo me duro 8 meses y no he pidido conseguir el repuesto.
Trustpilot
3 weeks ago
2 months ago